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The electronic configuration of element with atomic number 24 is:
(1) 1s2 2s2 2p6 3s2 3p6 3d4 4s2
(2) 1s2 2s2 2p6 3s2 3p6 3d10
(3) 1s2 2s2 2p6 3s2 3p6 3d6
(4) 1s2 2s2 2p6 3s2 3p6 3d5 4s1
Ans: 1s2 2s2 2p6 3s2 3p6 3d5 4s1
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