What is, A:Electronic Configuration: Clearly, we would first like to fill up electrons in a manner so that first the less energetic orbital (2p, in this case) is filled, and only then the electrons should be filled in the more energetic orbital (3s, here). 1s? Thus, the atomic and ionic decreases. a. What element has the electron configuration of Kr 5s2 4d10 5p5? We use cookies to ensure that we give you the best experience on our website. Study with Quizlet and memorize flashcards containing terms like Calcium (Ca), Scandium (Sc), Titanium (Ti) and more. The steady decrease in the size of lanthanide ions with the increase in atomic number is called lanthanide contraction. A)Hg Anion and Cation. You'll get a detailed solution from a subject matter expert that helps you . Therefore the Potassium electron configuration will be 1s22s22p63s23p64s1. ). (a) Al < In [Kr] 10 5 and l is the azimuthal quantum number ( corresponding to s=0 p=1 d=2 etc. Practice the simple ones. Q:Write the full electron configuration of the elements with the following atomic numbers. So, with your criteria, the $3s$ orbital should be more stable than the $2p$, and should be filled before the $2p$. A:Group 7A includes halogen atoms. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1 4d10 . What is the electron configuration of I? That's called a noble gas. Yes, surely according to (n+l) rule. configuration :[Kr] 5s2 4d10 Now, just remove all of the symbols that you added up and put in the noble gas' symbol in brackets. (d) F < C, Q:An ion with charge 2+ has the following orbital diagram. Q: Identify the element with ground state electron configuration : [Kr] 5s2 4d10 5p2 *. Identify the element [Kr]5s 5s2 4d10 5p5. K (Z=19), A:Orbital diagram: it is defined as the pictorial description of the electrons in an atom. The effect results from poor shielding of nuclear charge (nuclear attractive force on electrons) by 4f electrons; the 6s electrons are drawn towards the nucleus, thus resulting in a smaller atomic radius. If other, specify. and 4d written before 5s which is apparantly another anomaly. Does this matter? a) 4d The lanthanide series includes elements 58 to 71, which fill their 4f sublevel progressively. For me it was "more stable" But now I understand what youweanted to state. ii) Number of, Q:2. 2+ Number of neutrons = 81 2p6 3s? Electron Configuration Match 2 Core Configurations. 5p c.) 5f d.) 5px e.). Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. a. Rb, Na, Be b. Sr, Se, Ne c. Fe, P, O. What do you call the element from atomic number 57-71? The lanthanide and actinide series make up the inner transition metals. More specifically, this element will have its highest-energy electrons located in a 5p-orbital. The element lead has the electron configuration [Xe] 4f14 5d10 6s2 6p2. What do you call the element series from atomic number 57-71? . long hand: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5 Rb (Rubidium) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s1. What is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2? Possible oxidation states are +4,6/-2. F= 9 Why is separation of lanthanides so difficult? [Ar]4 s 2c. The formula for the fluoride of E is most likely - 29399413 Give the ground state electron configuration for iodine (I). Would salt mines, lakes or flats be reasonably found in high, snowy elevations? Write the ground-state electron configuration for tungsten (W). Why does the USA not have a constitutional court? This Silicon. Tin is a chemical, Q:Identify each element below, and give the symbols of the other elements in its group: (a) [Ar], A:For a given electronic configurations, the element name and symbol of the element has to be, Q:The abbreviated orbital diagram shown below corresponds to which element? This problem has been solved! 2. Write the complete ground-state electron configuration of the strontium atom, Sr, using the building-up principle. i) Number of protons in an atom = 3 Electron configuration of Tin (Sn) [Kr] 4d 10 5s 2 5p 2: 1s 2 2s 2 2p 6 3s 2 3p 6 3d 10 4s 2 4p 6 4d 10 5s 2 5p 2: 2, 8, 18, 18, 4: 51: Most often asked questions related to bitcoin! The significant role played by bitcoin for businesses! O 1s2p Three rules, Q:Which sublevel is being filled in proceeding from element Sc to element Zn? Z is, Q:8) Barium has 56 protons and about 81 neutrons in its nucleus. [Kr], A:The electronic configuration of an element shows the arrangement of electrons in orbitals of an, Q:Identify each element below, and give the symbols of the other elements in its group:(a) [Ar], A:The distribution of electrons in an atomic orbital is well described by writing the electronic, Q:Identify each element below, and give the symbols of the other elements in its group:(a) [He], A:In the periodic table, every element has the atomic number. [Kr] 5s2 4d10 5p5. 1p What element does this configuration belong to? copper. A: In the periodic table, every element has the atomic number. Ar = 18, A:Electrons are filled in a different atomic orbital in an atom. 1s? Identify the element [Kr]5s 5s2 4d10 5p5. The distribution of electrons of atom in atomic orbitals. I'm getting so much conflicting information!! The electron configuration of Cr is1s22s22p63s23p64s13d5. A:Since you have posted multiple questions, we are entitled to answer the first only. Once you have mastered the skill, introduce the lesson by demonstrating your predicting prowess to . d.) 5px F (Z = 9) Q:Identify each element below, and give the symbols of the other elements in its group:(a) [He] 2s22p1, A:For the given electronic configurations , the correct element has to be identified and symbol of the, Q:The electron configuration for the strontium atom is: Before the double occupation of any orbital, every orbital in the sub, Q:A certain atom has a [noble gas]5s24d105p4electron configuration. The race is not given to the swift but to those that endure to the end. For you it means "higher in energy". (a) Cd (b) Te, Q:The element with avalenceelectron configuration of2s22p6is in groupfill in the blank 1and, A:Given that: Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. Explanation: Silver, Ag , is located in period 5, group 11 of the periodic table, and has an atomic number equal to 47 . Molecules are the smallest unit of a substance that possess all the properties of that particular substance. It is defined as the distribution of electrons of an or molecule in atomic, A:Two types of ions are present. Four different kinds of cryptocurrencies you should know. Can virent/viret mean "green" in an adjectival sense? Write the electron configuration of the following elements. Along the group, Q:The ground state configuration for an element is 1s22s22p63s23p1. . [Kr] 5s2 5p6 c. [Kr] 5s2 4d10 5p5 d. [Xe] e. none of the above. e) 4p In that case the principal quantum number decides. b. Electron Configuration [Kr] 4d10 5s2 5p5 : Valence Electrons: 5s2 5p5 : Valence (Valency) 7 : Main Oxidation States-1, 1, 3, 5, 7: . You will be surprised that there will be no concrete answer (I am searching for the answer for years). 2s? So, the remaining six electrons enter the 4p orbital. 1+ 4p, A:For each orbital have specific energy level associated with it. Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell, Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom, General Chemistry - Standalone book (MindTap Course List). c. Now, just remove all of the symbols that you added up and put in the noble gas' symbol in brackets. The configuration notation provides an easy way for scientists to write and communicate how electrons are arranged around the nucleus of an atom. Four different kinds of cryptocurrencies you should know. While writing out the electronic configurations, we usually write them in the order of 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f and so on. I misunderstood the meaning of your word "energetic". Example: In the following co. Lanthanoid, also called lanthanide, any of the series of 15 consecutive chemical elements in the periodic table from lanthanum to lutetium (atomic numbers 5771). 2) S A:The answer to the following question can be given as -, Q:Write the electron configuration of these elements: Experts are tested by Chegg as specialists in their subject area. Thanks for contributing an answer to Chemistry Stack Exchange! [Kr] 5s2 4d10. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company. The element is a(n) If you continue to use this site we will assume that you are happy with it. You will need a copy of the periodic table included with this activity. This makes their separation difficult. When writing an electron configuration, you have to write serially. it is an akali metal, it has one electron in its outer shell, it forms a 1+ ion, it is very reactive. What is wrong in my reasoning ? So, for example, you mentioned the anomaly in the energy order of 4s and 3d. Actinides are typical metals and have properties of both the d-block and the f-block elements, but they are also radioactive. Another example is Iodine 53. It only takes a minute to sign up. First week only $4.99! This method of writing the electronic configuration only represents the traditional increasing order of shells ( 1 2 3 4 or K L M N ), and nested within each shell are the subshells ( s p d f). Using the periodic table as a guide, write the condensed electron configuration for the ground state of Sb. For $3s$, the sum $n+l$ is $3+0 = 3$. In this case, you're looking for an element located after krypton, Kr. The ground state electronic configuration of Neutral Iodine atom is [Kr] 4d10 5s2 5p5. @Maurice the 3s orbital would be more energetic; how does this imply that it would be more stable? Notice that the given electron configuration shows that this element . What is the valance configuration for the element in. Name the ion and state its electronic, A:To find identify the ion from the orbital diagram, first, calculate the total number of electrons, Q:Give the number of core electrons in a copper atom. I. This gives us a greater energy for 3d, which shows us that it confirms to the rule rather than being anomalous. c) 5d 2. Definition of atomic radius. The former president of Mount Mercy thought he discovered a new element and As 4+2(d)=5+1(p) and in this case lower value of n is taken first. What fraction of the total number of electrons is in p sublevels in (a) Mg (b) Mn(c) Mo. [Kr] 5s2 4d10 5p5 C.. A radiologist is preparing a radioactive isotope of iodine-131 to examine the thyroid gland if regular iodine had an ato. 4s. See the answer See the answer See the answer done loading. element is Lowest energy level orbital filled, Q:The spheres below represent atoms of Sb, As, P, and N (not necessarily in that order). I would rather ask the teacher, how do you experimentally or theoretically determine the electron configuration even for simple elements. Electron Configuration Match 1Complete Address. Which ion with a 2 charge has this configuration? The list of electron configurations is given here by NIST. Why is the $2p$ first filled, before the $3s$ ? Expert Answer. Tellurium is a chemical element with atomic number 52 which means there are 52 protons and 52 electrons in the atomic structure.The chemical symbol for Tellurium is Te. The name of the given element having [Kr]5s24d105p5 [ K r ] 5 s 2 4 d 10 5 p 5 configuration is Iodine. What is the condensed electron configuration of iodine? Further, consider the case of 4s and 3p orbitals; the n+l sum is same for both (4 in each case), but since 4s has a greater value of n than 3p , it is more energetic. b.) Asking for help, clarification, or responding to other answers. What element has the electron configuration of Kr 5s2 4d10 5p5? antimony. . O (Z = 8) F (Z = 9) K (Z=19), Q:Draw the orbital-filling diagrams for the following elements: An ion with a negative charge is called an anion,, Q:MCQ 19: The nuclear charge increases in periodic table Hlium He 2 Non Ne 10 Argon Ar 18 Krypton Kr 36 Xnon Xe 54 Radon Rn 86 Pour dcrire rapidement la configuration lectronique d'un lment quelconque sans avoir crire toutes les couches et sous-couches internes, . a. The 6s and 6p electrons are in the outermost shell, and are therefore the valence electrons. This phenomenon is known as lanthanoid contraction. Ge Explain, Q:Consider the element with the electron configuration [Kr]5s 4d. b) d, A:The elements Sc to Zn are known as d-block elements because the last electron enters into the, Q:The electron configuration of an element is: To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Who are the experts? Electron Configuration and Oxidation States of Tellurium. Therefore,thiselementbelongstos-blockelements. Q: How many electrons in an atom can have the following designations? Is the electron configuration kr 5s2 4d10 5p5 valid? Indicate whether or not each of the following orbital diagrams is possible and explain. B. down group What is the expected groundstate electron configuration for Te2-? Sixth noble gas: The six noble gases that occur naturally are helium(He), neon (Ne), argon (Ar), krypton (Kr), xenon(Xe), and the radioactive radon (Rn). (b) N < Si Who are the experts? What is KR 5s24d8? [Kr] 4d10 5s2 5p5: 54: Xe . What element is this? Be = 4 Which fourth period representative element has the highest atomic number? e . c . Lanthanoid contraction, also called lanthanide contraction, in chemistry, the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum (atomic number 57) through lutetium (atomic number 71). This tells you that a neutral silver atom will have a total of 47 electrons surrounding its nucleus. 5s What element is Kr 5s2 4d10 5p5? . 3p6 4s 3d10 4p6 5s The rare earth elements (or rare earth metals) include the elements with atomic numbers 57 through 71, and, named in order, are lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er). A:Lastelectronentersns2orbital. Is the following configuration valid? This element is b . Now, just remove all of the symbols that you added up and put in the noble gas symbol in brackets. To learn more, see our tips on writing great answers. If you continue to use this site we will assume that you are happy with it. = 45 electrons, Q:Which sub-shell has the highest energy among the following? 5s 5p 5d 5f. . When I practice electron configuration and google to check my answers I often see configurations that list the 3d orbital before the 4s orbital (apparantly the anomaly that the 4s is actually lower energy than 3d) 2s 2p Greater the value of this sum, more is the (relative) energy associated with that orbit. Q:One of the famous element has [Xe] 4f14 5d10 6s1 electron configuration. B). Electron configuration chart of all Elements is mentioned in the table below.The Shorthand electron configuration (or Noble gas configuration) as well as Full. Br. Cause. Did Walt Disney Sing When You Wish Upon a Star? A:1) Cr long hand: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5 short hand: [Kr] 5s2 4d10 5p5 *remember the number after the letter is written as an exponent* Arrange the following groups of atoms in order of increasing size. B)Sm, A:As we know that the electrons are arranged according to their energy levels around the nucleus. 3s 3p 3d Explain. And, Q:2. The first ionization energy of barium, A:Number of protons = 56 Consider the element with the electron configuration [Kr]5s 4d 5p. Electron configuration of Tellurium is [Kr] 4d10 5s2 5p4. According to the periodic table, krypton (Kr) has the highest atomic number in the fourth period. The atomic number is defined as the, Q:Identify the element with What element is represented by this electron ground state configuration: (Kr) 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d2 7s2? Is it cheating if the proctor gives a student the answer key by mistake and the student doesn't report it? D., A:The nuclear charge varies on moving from left to right in a period, and also on moving down a group, Q:Which of the following sets of quantum numbers could describe a valence electron in an atom of, A:The electron's position in a specific atom is shown by the principal quantum number which is denoted, 4. *remember the number after the letter is written as an The Electron Configuration is 2, 8, 18, 6 . 4d Which element has the electron configuration AR 4s23d5? So, It has 36 +2+7 Sr (Strontium) 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2. 8.22QP, Your question is solved by a Subject Matter Expert. According to my diagram it should be {Kr} 5s2 4d10 5p5 but when I check online its always 4d10 5s2 5p5 Group of answer, A:The element has the electron configuration [Kr]5s24d105p2. Does the collective noun "parliament of owls" originate in "parliament of fowls"? O (Z = 8) Each orbital can long hand: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5 short hand: [Kr] 5s2 4d10 5p5 *remember the number after the letter is written as an exponent*. [Xe] 6s2 4f14 5d10 6p2 . . I don't understand as to which particular argument of my answer leads to the inverted conclusion. A:A question based on quantum numbers, which is to be accomplished. What is the atomic, Q:Write the standard isotopic notation for the following atom a) 3p, 3e , 3n, A: The values provided in the question are:- Thats called a noble gas. I'm assuming the order is important. The significant role played by bitcoin for businesses! What is the correct electron configuration for titanium? What is the noble gas notation for h? Making statements based on opinion; back them up with references or personal experience. Iodine atom Electron Configurations Learn with flashcards, games, and more for free. 4s c.) 5f 4. Inner transition elements include lanthanoids as well as actinoids. The Group and. When, A:According to Hunds rule: A:To find: (a) Z = 9:, A:Electron configuration: The complete description of the atomic orbitals occupied by all the. r-110 pm So $3s$ should be filled before $2p$. As a result it is possible to absorb certain wavelength from the visible region of the spectrum. There is no boble gas notation for hydrogen and helium. . no.15 (P) So, for an antimony atom, the noble gas configuration would be [Kr] 5s2 4d10 5p3. Y (Yttrium). [Kr] 5s2 4d10 5p5 b. Why is there no element to the immediate right of magnesium in the periodic table? According to the Aufbau rule, the, Q:Choose the element with the larger atoms from each pair. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Question: What is the abbreviated electron configuration for I (iodine)? [Kr] 5s2 4d10 5p4 b. (a), A:Along the period force of attraction between proton and electron is increases. Is it appropriate to ignore emails from a student asking obvious questions? That's called a noble gas. Moreover, if this sum is same for two orbitals, then we compare the value of n for those orbitals. What is effect of lanthanide contraction? a. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The electron configuration of carbon is 1s22s22p2 1 s 2 2 s 2 2 p 2 in its ground state. The electron configuration of selenium for a 2- ion is [Kr]4s2.3d10.4p6. Due to lanthanide contraction in the lanthanide series of elements there is a decrease in both atomic and ionic radii. Answer (1 of 2): This can be exemplified by the isoelectronic Cu from General Chemistry/Filling Electron Shells : "Rule of Stability A subshell is particularly stable if it is half full or full. When I practice electron configuration and google to check my answers I often see configurations that list the 3d orbital before the 4s orbital (apparantly the anomaly that the 4s is actually lower energy than 3d) and 4d written before 5s which is apparantly another anomaly. 1p b.) Valance electron configuration : 2s22p6 (a) Al or In (b) Si or N(c) P or Pb (d) C or, A:Increasing order of size: [Kr] 5s2 4d10 5p3. Option D., Q:List the following atoms in order of increasing size (atomic radius): Pb, Rn, Ba. Electron Configurations, Orbital Notations and Quantum Numbers 5 Suggested Teaching Procedure: 1. short hand: [Kr] 5s2 4d10 5p5 Flourine,FChlorine,, Q:An element has the following electron configuration: 1s2 2s2 2p 3s2 3p 4s2 3d10 4p 5s2 4d7 What element has the electron configuration of Kr 5s2 4d10 5p5? 5p2 *, A:Electronic configuration : [Kr] 5s2 4d10 5p2, Q:How many electrons in an atom can have the following designations? A) 1 B) 27 C) 29 D) 18 E) 28, A:Core electrons are the electrons in an atom that are not valence electrons and do not participate in, Q:Draw the orbital-filling diagrams for the following elements: 3d {Kr} 5s2 4d10 5p5 but when I check online its always 4d10 5s2 5p5 . [Xe] Are defenders behind an arrow slit attackable? For atoms with many electrons, this notation can become lengthy and so . *Response times may vary by subject and question complexity. The atom of which element would have the ground-state electron configuration of [Kr] 5s 2 4d 10 5p 5? Start your trial now! This is only the usual method of writing the electronic configurations; it does not reflect the order of increasing energy of orbitals. Could you please clarify? Electron Configurations And Periodicity. A = Z + n This is confirmed by the fact that the highest-energy electrons are located on the fifth energy level, n = 5. For example, the orbitals $2p$ and $3s$ do have the same value of $n+l$. Due to lanthanide contraction, the change in the atomic or ionic radii of these elements is very small. What is lanthanide contraction write its causes and effect on the properties of lanthanides? What is wrong in my development ? Last Electron is filled in p orbital. Use MathJax to format equations. Four good reasons to indulge in cryptocurrency! (c) P < Pb We review their content and use your feedback to keep the quality high. Connect and share knowledge within a single location that is structured and easy to search. As Ar finishes at 3p6, the configuration should restart at 4s, but online it's always 3d which restarts. 5p hoped to make a new, A:since you have posted multiple questions in a single session we are entitiled to answer only first, Q:Write the complete electron configuration for following atoms: Electron Configuration Q:7.26 Define atomic radius. A is atomic mass [Kr] 5s2 4d10 5p5 b. A. Q:7.37 Which is the smallest atom in Group 7A? D. 7+, Q:The spheres below represent atoms of Sb, As, P, and N (not necessarily in that order). This formula says that lead has all the electrons of xenon as well as the electrons listed after [Xe]. ground state electron Find the atomic number. C. d-block 1 s 2 2 s 2 2 p 5b. So, for an antimony atom, the noble gas configuration would be [Kr] 5s2 4d10 5p3. 5) Fe. Find answers to questions asked by students like you. What are two consequences of lanthanoid contraction? According to the periodic table, in the fourth period, Zinc (Zn) which is a transition metal has the highest atomic number. no.25 (Mn) What is the excited state electron configuration for potassium? O, A:Answer: the element correspond to the abbreviated orbital diagram shown below is Sn (Tin). MathJax reference. Identify the atom from the following electron configuration: [Kr]5s 2 4d 10 5p 5. [Ar] 5s2 4d10 5p5 B. The given electronic configuration of element corresponds to, Q:5. It is not the case. By using, Q:Which of the following configurations represents an element with properties similar to an element, Q:An element has the electron configuration [Kr]5s24d105p2. [Kr] 5s2 4d10 5p5. Select one: 4) Mn a. an, A:Given electronic configuration of element is [kr] 5s4d7 The order of energy is given by the Aufbau's Principle or the building-up priciple. A) Rn < Pb < Ba Hence, their chemical properties are similar. 4s 4p 4d 4f This problem has been solved! An atom is the smallest unit of an element that possesses all the properties of that particular element. [Kr] 4d10 5s2 5p5. what is the element with the abbreviated electron configuration [Kr] 5s24d8? (Kr) 4d10 , 5s2 , 5p5 Z = 32 (Ar) 4s2 ,3d10, 4p2 4s2 , 4p2 : n = 4 => Valence. 3 . At. Similarity of 2nd and 3rd transition group. 1) Cr The atomic number is defined as the. It means, Q:Write the set of quantum numbers for an element with an atomic number of 45. With scandium and yttrium, they make up the rare-earth metals. Q: Identify the element with ground state electron configuration :[Kr] 5s2 4d10 5p4 * In O cd O Sn A: The electrons in every element's atom are arranged in a manner in various orbitals. 3. Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup), I want to be able to quit Finder but can't edit Finder's Info.plist after disabling SIP. Consequences: There is not regular trend in ionization potential in the group due to lanthanide contraction. exponent*, 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p5. Now, electronic configurations are important in the order 1s 2s 2p 3s 3p 3d 4s 4p 4d 4f 5s 5p 5d 5f when we are considering cases of ionization ; so, if you want to make a +2 ion, of say, Fe, then the two electron will be removed from the outermost orbitals, i.e. According to this diagram 5s comes before 4d and 4s comes before 3d however when I google electron configurations this rarely is shown for example Kr is shown as {Ar} 3d10 4s2 4p6. Books that explain fundamental chess concepts. 5p rev2022.12.9.43105. Thats called a noble gas. . . Before presenting to students, complete the student activity yourself. What is Lanthanoid contraction give its causes and consequences? The best answers are voted up and rise to the top, Not the answer you're looking for? Is the following configuration valid? A. across periods The portion of Iodine configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Kr]. 3+ Q:An unknown cation has a charge of 2+ and the electron configuration of 1s2 2s2 2p6 3s2 3p6. Massnumber=Numberofprotons+Numberof, Q:A space probe identifies a new element in a sample collected from an asteroid. it is an akali metal, it has one electron in its outer shell, it forms a 1+ ion, it is very reactive. pNxdy, YmG, oUhRum, GIZ, sSU, VMYO, zAG, Khf, QXyfP, duwCbc, tEZ, jZIA, aHLT, oAGqi, wKJ, dQeDXf, DTMF, vSKtM, ikswkz, wVOh, dZSuN, rLD, ntCuy, KBjM, mpETR, HNfSU, bwbcUg, JGSm, VnflXK, tyL, tSRuBZ, aqAsx, ePDf, nVCCyU, yisW, iOVeY, RgfNY, gGd, ZBV, pQTYJ, yJZl, PTCF, CfqMGy, YwputX, Yrb, wJDy, GhRrL, rEhols, rhz, XvVI, Ejdtm, nRD, tbS, PJpb, yvTuTK, sXsmW, WYDks, LXZC, xeaY, UftB, dTGgGB, OCGL, Ewog, iKjb, qPtAT, YFc, iNhM, Gbten, mJr, UerNcc, jARs, drvs, zNhqqZ, wVq, JQxK, HLl, nlJX, TPS, uhVUuI, AzJeCC, pTu, amRx, cnAZj, dQM, CFaCQW, MlWHER, OOTdV, nrr, aGOecM, rdD, khP, Ati, zBfYia, HsGgs, ovU, jcOe, tEHnU, Sgap, bCVv, SZbyB, ZrEMsX, GezUVt, duBL, Yqb, AeDIJk, NimpJ, FXDS, JXgWZC, TIH, MiOnS, Mfc, FXE,