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Chemistry PP
Module 7 - Practice Problems
Question | Answer |
---|---|
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" |