One of two or more atoms with the same atomic number but with different numbers of neutrons.
Atoms of the same element that have the same number of protons (and hence the same chemical properties), but a different number of neutrons, and therefore, different atomic weights.
> Form of an element having same atomic number but different atomic weight and different radioactivity. radioactive isotope, form of an element made radioactive and used in medical diagnosis and treatment, etc. isotopic)
One of two or more atoms that have the same atomic number (same number of protons), but which contain a different number of neutrons, thus differing in their atomic masses. They may be stable or radioactive, naturally occurring or synthesized. The term was coined by English chemist Frederick Soddy, pioneer researcher in atomic disintegration. + prikaži više