Deuterium

Pronunciation

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Noun

1. Template:Chemistry Deuterium is a kind of hydrogen atom that has a nucleus with one proton and one neutron. It can be written as ${\phantom{A}}_{\phantom{1}}^{\phantom{2}}{\phantom{A}}_{\phantom{2}1}^{\phantom{2}2}\mathrm{H}$ or ${\phantom{A}}_{\phantom{}}^{\phantom{2}}{\phantom{A}}_{\phantom{2}}^{\phantom{2}2}\mathrm{H}$ or $\mathrm{D}$.
2. Template:Chemistry Deuterium is a substance consisting of deuterium atoms.