Isotope

Isotope

Atoms of the same element always have the same number of protons, which is represented by their atomic number. However, atoms of the same element can have different numbers of neutrons, creating variations known as isotopes. An isotope is a version of an element with the same number of p...

Isotopes have the same number of protons, which defines the element but differ in the number of neutrons in their nucleus. They have the same atomic number but different mass numbers.

For example, most hydrogen atoms consist of just one proton and one electron, with no neutrons. However, some hydrogen atoms contain one neutron with one pr...