+An **isotope** is a form of an [Element](/wiki/element) defined by its unique number of [Neutron](/wiki/neutron)s. While sharing the same chemical identity, isotopes possess different atomic masses.
+## See also
+- [Atom](/wiki/atom)
+- [Proton](/wiki/proton)
+- [Atomic Mass](/wiki/atomic_mass)
... 1 more lines