Question: The isotopes of hydrogen are:
Tritium and protium only
Protium and deuterium only
Protium, deuterium and tritium
Deuterium and tritium only
Correct Option:
Solution:
Hydrogen has three isotopes:
Protium $\left({ }_{1} \mathrm{H}^{1}\right)$, deuterium $\left({ }_{1} \mathrm{H}^{2}\right)$ and tritium $\left({ }_{1} \mathrm{H}^{3}\right)$.
