Answered: 1. Using the various group…

Chemistry & Chemical Reactivity

9th Edition

ISBN:9781133949640

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter2: Atoms Molecules And Ions

Section: Chapter Questions

Problem 154GQ: Mass spectrometric analysis showed that there are four isotopes of an unknown element having the...

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1. Using the various group classifications from the periodic table, assign all appropriate labels to each of the following elements. Each element will have multiple (2 or more) answers. (a) Silver (b) Tennessine (c) Samarium (d) Antimony 2. Calculate the numbers of each type of nucleon and the number of electrons in each of the following species. (a) neodymium-149 (b) tantalum-179 (c) sellenium-79 dianion (d) krypton-85 trication 3. Write the ground-state electron configuration for the following atoms or ions. Use core notation in your electron configurations at your own discretion. (a) As (b) Au (c) Ce (d) Zn2− (e) Po4+ 4. Write an appropriate set of four quantum numbers (n, l, ms & ms) that could be representative of a valence electron in each of the following atoms or ions. (a) Bi (b) Sr (c) Mo (d) Ru2+ (e) Eu 5. In theory, there are an infinite number of energy levels and atomic orbital types that we can define using the solutions to the Schrödinger equation, i.e. the quantum numbers. (a) What would be the value of the l quantum number for an m orbital? (b) What would be the lowest principle quantum number (n) for which a m orbital would be allowed? (c) How many orbitals would there be in an m sub-shell?

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