JAMB Chemistry 2024 Paper

Concept:Isotopes of an element have the same number of protons but different numbers of neutrons.Explanation:Hydrogen has three common isotopes.Protium is $^{1}_{1}\mathrm{H}$ and has no neutrons.Deuterium is $^{2}_{1}\mathrm{H}$ and has one neutron.Tritium is $^{3}_{1}\mathrm{H}$ and has two neutrons.The term "highest isotope" means the isotope with the greatest mass number.Tritium has a mass number of $3$, which is higher than protium ($1$) and deuterium ($2$).Therefore, tritium is the highest isotope of hydrogen.Answer:C. Tritium