A deuterium atom

Question

A deuterium atom (A) has the same atomic mass as the hydrogen atom (B) has the same electronic configuration as the hydrogen atom (C) has the same composition of the nucleus as the hydrogen atom (D) contains one proton more than a hydrogen atom.

Tardigrade Admin · Accepted Answer

Electronic configuration of deuterium is 1 s1 which is similar to that of hydrogen.

Q. A deuterium atom

has the same atomic mass as the hydrogen atom

has the same electronic configuration as the hydrogen atom

has the same composition of the nucleus as the hydrogen atom

contains one proton more than a hydrogen atom.

Electronic configuration of deuterium is 1 $s^{1}$ which is similar to that of hydrogen.