Determine chromium has the electronic configuration, Chemistry

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Chromium has the electronic configuration 4s1 3d5rather than4s2, 3d4 because:

(1) 4s and 3d  have the same energy

(2) 4s  has a higher energy than 3d

(3)4s1  is more stable than 4s1

(4)4s1 3d5 half-filled is more stable than 4s2 3d4

Ans: 4s1 3d5 half-filled is more stable than 4s2 3d4


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