1.

मुद्रा धातु है (a) Zn(b) Sn(c) Pb(d) Cu

Answer»

ANSWER:

a)30 Zn zinc : [Ar] 3d10 4s2

b)21 SC scandium : [Ar] 3d1 4s2

c)82 Pb lead : [Xe] 4f14 5d10 6s2 6p2

d)29 CU copper : [Ar] 3d10 4s1



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