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Isotopes: Atoms having same atomic number but different masses is known as Isotopes
Isotopes: Isotopes\xa0are atoms with the same number of protons but that have a different number of neutrons. Since the atomic number is equal to the number of protons and the atomic mass is the sum of protons and neutrons, isotopes\xa0are elements with the same atomic number but different mass numbers.Isobars: Atoms of different elements with different atomic numbers, which have the same mass number, are known as isobars.