JEE PYQ: Hydrogen Question 9
Question 9 - 2021 (26 Feb Shift 2)
Which of the following forms of hydrogen emits low energy $\beta^-$ particles?
(a) Proton $\text{H}^+$ (b) Deuterium $^2_1\text{H}$ (c) Protium $^1_1\text{H}$ (d) Tritium $^3_1\text{H}$
Show Answer
Answer: (d)
Solution
Tritium isotope of hydrogen is radioactive and emits low energy $\beta^-$ particles due to high n/p ratio which makes the nucleus unstable.