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The number of unpaired electrons in chromium (atomic number 24) is

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The number of unpaired electrons in chromium (atomic number 24) is

(a) 2 

(b) 3

(c) 5

(d) 6

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Correct option is (d) 6

The electronic configuration of Cr is 1s2 2s2 2p6 3s2 3p6 3d5 4s1. Half filled orbitals have a more stable configuration. Number of unpaired electrons is 6.

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