Vanlency for chromium with explanations?
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electronic configuration of chromium is
Cr-1s2,2s2,2p6,3s2,3p6,4s1,3d5
so it's valency be 6
Cr-1s2,2s2,2p6,3s2,3p6,4s1,3d5
so it's valency be 6
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