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The electronic configuration of chromium is:
(1) [Ne]3s2, 3p6, 3d4, 4s2,
(2) [Ne]3s2, 3p5, 3d4, 4s1,
(3) [Ne]3s2, 3p6, 4s2, 4sp4,
(4) [Ne]3s2, 3p6, 3d1, 4s2,4p3
Ans: [Ne]3s2, 3p5, 3d4, 4s1,
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