There are many elements in chemistry. Each having different properties and composition. The property of an element completely depends on the number of protons, electrons and neutrons present in it.
What are isotopes?
The elements that have the same atomic number but a different mass number are called isotopes. Isotopes occur due to the presence of a different number of neutrons in elements having the same atomic number as mass number is the sum of the number of neutrons and protons. The isotope mainly deals with the variation in the atomic mass or weight of an element.
Carbon has three isotopes: Carbon-12, Carbon-13, and Carbon-14.
Carbon-12: It contains six number of neutrons
Carbon-13: It contains seven number of neutrons
Carbon-14: It contains eight number of neutrons
Hydrogen has three stable isotopes namely Protium, Deuterium, and Tritium
Protium: It contains zero neutrons
Deuterium: It contains one neutron
Tritium: It contains two neutrons