Multiple choice

Atoms with the same atomic number but different atomic mass are known as:

  1. isobars

  2. metals

  3. isotopes

  4. isoelectronic

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Atoms having same atomic number (i.e. same number of protons but different number of neutrons in their nucleus) but different atomic mass (i.e. sum total of number of protons and neutrons) are known as isotopes.