Elements of the same number but of different atomic number are known as ……….

Elements of the same mass number but of different atomic number are known as ……….

The atoms of different elements having same mass number but different atomic number are known as isobars. The sum of protons and neutrons, in the isobars is always different.

The atoms of different elements having same mass number but different atomic number are known as isobars. The sum of protons and neutrons, in the isobars is always different.

Atoms of different elements having same mass number but different atomic numbers are called

The atoms with same mass number but different atomic number are called