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Whelan Whelan
wrote...
Posts: 3158
9 years ago
What is the ground-state electron configuration for Cr in Cr2O72-?
A) [Ar] 4s1 3d5
B) [Ar] 4s2 3d6
C) [Ar] 3d4
D) [Ar] 3d0
Textbook 
Introductory Chemistry Essentials

Introductory Chemistry Essentials


Edition: 5th
Author:
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hbutler2hbutler2
wrote...
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Posts: 3075
8 years ago
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mktoto88
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Whelan Author
wrote...

9 years ago
Just got PERFECT on my quiz
wrote...

Yesterday
Good timing, thanks!
wrote...

2 hours ago
Thanks for your help!!
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