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Chemistry PP

Module 7 - Practice Problems

7.1 a. 40p 40e 50n b. 80p 80e 122n c. 28p 28e 30n d. 86p 86e 136n
7.2 ²²Na ²³Na ²⁴Na
7.3 ⁸⁴Y
7.4 3.6 x 10³¹ nm
7.5 3.51 x 10ˉ¹³
7.6 5.67 x 10ˉ¹⁹
7.7 2p. 3s is spherically shaped, and 2p is dumbbell-shaped.
7.8 a. 1s²2s²2p⁶3s²3p⁶4s²3d² b. 1s²2s²2p⁶3s²3p⁴ c. 1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p⁶5s¹
7.9 a. [Ar]4s²3d³ b. [Kr]5s²4d¹⁰5p² c. [Kr]5s²4d¹⁰5p¹
7.10 a. "p" does not have seven columns, so "3p⁷" should be "3p⁶". b. "4s²" should come before "3d¹⁰"
Created by: LiseBrinkley



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