Elements up to atomic number `103` have been synthesized and studied. If a newly discovered element is found to have an atomic number `106`, its electronic configuration will be

Options

A. `[Rn]5f^(14),6d^(4),7s^(2)`
B. `[Rn]5f^(14),6d^(1),7s^(2)7p^(3)`
C. `[Rn]5f^(14),6d^(6),7s^(0)`
D. `[Rn]5f^(14),6d^(5),7s^(1)`

Answer

A

Explanation

`Unh_(106)=[Rn]5f^(14),6d^(4),7s^(2)`