Home Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Alkali Metals A deuterium atom :
Chemistry S and P - Block Elements (S - Block Elements Not In Syllabus ) Alkali Metals Single Correct MCQ
Published on: August 13, 2026

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.

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The correct answer is:
B

Electronic configuration of hydrogen and deuterium is the same i.e. 1s1

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