Question

Which is not true for ${}_1{H}^1$; ${}_1{H}^2$; ${}_1{H}^3$?

• A. They are isotopes of each other
• B. They have similar electronic configurations
• C. They exist in the nature in the ratio of $1:2:3$
• D. Their atomic masses are in the ratio of $1:2:3$

Answer 1

The correct option is C They exist in the nature in the ratio of $1:2:3$

${}_1{H}^1$, ${}_1{H}^2$ and ${}_1{H}^3$ do not exist in the nature in the ratio of $1:2:3$.
The natural abundances of ${}_1{H}^1$, ${}_1{H}^2$ and ${}_1{H}^3$ are $99.984$ %, $0.016$% and ${10}^{-15}$ % respectively.