The electronic configuration of an element is 1... - JAMB Chemistry 2020 Question
The electronic configuration of an element is 1S\(^2\) 2S\(^2\) 2P\(^6\) 3S\(^2\) 3P\(^3\). How many unpaired electrons are there in the element?
A
5
B
4
C
3
D
2
correct option: c
Based on Hund's rule, there are 3 unpaired electrons in P.
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