Element with electronic arrangement [Ar]3d24s2 belongs to
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a
s-block
b
p-block
c
d-block
d
f-block
answer is C.
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Detailed Solution
[Ar]4s23d2 is a d-block element because the differentiating electron enters to penultimate (n-1)d subshell .Though outershell is 4th shell the differentiating electron enters into 3d subshell.