The dand fblock elements - Result Question 80
####80. General electronic configuration of lanthanides is
[1991, 2002]
(a) $(n-2) f^{1-14}(n-1) s^{2} p^{6} d^{0-1} n s^{2}$
(b) $(n-2) f^{10-14}(n-1) d^{0-1} n s^{2}$
(c) $(n-2) f^{0-14}(n-1) d^{10} n s^{2}$
(d) $(n-2) d^{0-1}(n-1) f^{1-14} n s^{2}$
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Solution:
- (a) The Lanthanides are transition metals from atomic numbers $58(Ce)$ to $71(Lu)$.
Hence the electronic configuration becomes :
$ (n-2) f^{1-14}(n-1) s^{2} p^{6} d^{0-1} n s^{2} $
