1. Please tell me at least one atom that has valence electrons in the 3s energy level 2. Which atom has a valence electron in the 2p5 orbital? 3. How do we use the excitation of electrons to make light? i.e. explain to me how light is emitted from an atom.

Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter2: Atomic Structure And Periodicity
Section: Chapter Questions
Problem 95E: In the ground state of mercury, Hg, a. how many electrons occupy atomic orbitals with n = 3? b. how...
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1. Please tell me at least one atom that has valence electrons in the 3s energy level

2. Which atom has a valence electron in the 2p5 orbital?

3. How do we use the excitation of electrons to make light? i.e. explain to me how light is emitted from an atom.

Expert Solution
Question 1

Sodium atom has one electron in its 3s energy level.

Electronic configuration of sodium : 1s2 2s2 2p6 3s1.

Question 2

Fluorine atom has electronic configuration 1s2 2s2 2p5.

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