Question

Which of the following forms of hydrogen emits low energy β^- particles?

(1) Deuterium ²₁H

(2) Tritium ³₁H

(3) Protium ¹₁H

(4) Proton H⁺

Answer 1

(2) Tritium ³₁H

For tritium (³₁H)

No. of neutron (n) = 2

No. of proton (p) = 1

\(\frac{n}{p}\) = 2

∴ \(\frac{n}{p}\) is high , tritium will emit β particle.