Element in periodix table with electronic configuration as `[Ar]^(18)3d^(5)4s^(1)` is placed in:

Element with electronic configuration as [Ar]^(18)3d^(5)4s^(2) is placed in :

Element with electronic configuration as [Ar]^(18)3d^(5)4s^(2) is placed in :

Element with electronic configuration as [Ar]^(18)d^(5)4s^(2) is placed in :

The element with electronic configuration 3d^(5)4s^(1) is

Determine the position of an element in long form of periodic table if its electronic configuration is [""_(18)Ar]3d^(10)4s^(2) .

Determine the position of an element in long form of periodic table if its electronic configuration is [_18Ar]3d^10 4s^2 .