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Material Type: Assignment; Professor: Ziegler; Class: General Chemistry I; Subject: Chemistry ; University: Central Oregon Community College; Term: Fall 2006;
Typology: Assignments
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Class period 1 – Reading pp. 216-225.
Answers to Assigned problems not in the back of the book 6.54 a) permissible, 2p b) forbidden, for ℓ=0; mℓ can only be 0. c) permissible, 4 d d) forbidden, for n = 3, the largest ℓ value is 2. In general, for each principle quantum number,there are n kinds of orbitals, and n (^2) total orbitals. n, there are n ℓ- values and n^2 mℓ - values. For each shell,
6.62 a) Ga: [Ar] 4s^2 3d^10 4p^1 Outer shells look like this: (^) ↑↓ 4 s ↑↓ ↑↓ ↑↓ 3 d ↑↓ ↑↓ ↑ (^4) p 1 unpaired electron b) Ca: 20 electrons [Ar] 4s^2 outer shell looks like this:
no unpaired electrons c) V: [Ar] 4s^2 3d^3
d) I: [Kr] 5s^2 4d^10 5p^5 outer shells look like this: ↑↓ 5 s ↑↓ ↑↓ ↑↓ 4 d ↑↓ ↑↓ ↑↓ ↑↓ 5 p ↑ 1 unpaired electron e) Y: 39 electrons [Kr] 5s^2 4d^1
f) Pt: 78 electrons outer shells look like this: [Xe] 6s^2 4f^14 5d^8
Na^0 1s^2 2s^2 2p^6 3s^1 Na Cl 0 + (^) 1s1s (^22) 2s2s (^22) 2p2p (^66) 3s3s (^20) 3p 5 Cl-^ 1s^2 2s^2 2p^6 3s^2 3p^6 Ne C 0 1s1s^22 2s2s^22 2p2p^62
N^0 1s^2 2s^2 2p^3 Al Al^0 +3^ 1s1s^22 2s (^) 2s^2 2 2p (^) 2p^6 6 3s^2 3p^1 Ti+2^ 1s^2 2s^2 2p^6 3s^2 3p^6 4s^0 3d^2 Ti+4^ 1s^2 2s^2 2p^6 3s^2 3p^6 4s^0 3d^0
7.22 Ca>Ca+2>Mg+