1.

Number of unpaired electron(s) present in an element having atom ic num ber Z = 24 is .........

Answer»

6
4
0
5

Solution :ELEMENT(A=24) is chromiumelectronconfigurationis
`Cr(Z=24) [AR]^(18)3d^(5)4S^(1)`

thus it has 6 unparied ELECTRONS


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