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problem set 1 key - orgo

# problem set 1 key - orgo - Monday Night Problem Set 1 1...

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Monday Night Problem Set 1 1. Complete the following table. atom or ion name symbol # of protons total # of electrons ground state electron configuration # of valence electrons carbon 12 C 6 6 1s 2 2s 2 2p 2 4 chloride 35 Cl - 17 18 1s 2 2s 2 2p 6 3s 2 3p 6 8 calcium ion 40 Ca 2+ 20 18 1s 2 2s 2 2p 6 3s 2 3p 6 8 2. Complete the following table. The first row is completed as an example. Formula total # of valence e - s Lewis structure 3-D drawing (indicate bond angles around the carbon atoms) CH 4 C = 4 H = 1 (x 4) ------------ total = 8 H C H H H H C H H H bond angle = 109 o C 2 H 6 C = 4 (x 2) H = 1 (x 6) ------------ total = 14 C C H H H H H H bond angles = 109 o C C H H H H H H C 2 H 4 C = 4 (x 2) H = 1 (x 4) ------------ total = 12 C C H H H H C C H H H H bond angles = 120 o C 2 H 2 C = 4 (x 2) H = 1 (x 4) ------------ total = 10 C C H H bond angles = 180 o C C H H CO 2 C = 4 O = 6 (x 2) ------------ total = 16 C O O bond angles = 180 o C O O

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