The ground state electronic configuration of bismuth (`Z=83`) is

Options

A. `[Xe]5d^(10)6s^(2)6p^(3)`
B. `[X_e]4f^(14)6s^(2)6p^(3)`
C. `[Xe]4f^(14)5d^(10)6s^(2)6p^(3)`
D. `[Xe]6d^(10)6s^(2)6p^(3)`

Answer

3

Explanation

Elements of Group `15` have `ns^(2)np^(3)`electronic configuration in their outermost shell. However's , the electronic confirguration of the core differs. In the case of `N` and `P` , it is that of the preceding noble gas, Whereas for `As` and `Sb` it is noble gas plus `d^(10)` and for `Bi` it is noble gas plus `f^(14)d^(10)`.This is reflected in the properties of their elements.