Question

Which isotope of hydrogen is most abundant in nature?

Answer 1

Isotopes

• Isotopes are the atoms of same chemical element with different mass numbers.
• Examples: Hydrogen has three isotopes.They are; protium (${}_1{}^1\mathrm{H}$), deuterium (${}_1{}^2\mathrm{H}$) and tritium (${}_1{}^3\mathrm{H}$).
• All of them has one proton but their mass numbers are different.
• Being atoms of the same chemical element, they have same chemical properties.

Protium (${}_1{}^1\mathrm{H}$)

• It is the most abundant isotope of hydrogen in nature as its abundance is 99.9% and that of deuterium is 0.1%. Tritium is present only in trace amounts.