Multiple choice

Atoms with the same mass number, but different nuclear charges are called ___________.

  1. isotopes

  2. isobars

  3. isochores

  4. isotones

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

Isobars are atoms with the same mass number (total nucleons) but different atomic numbers (different numbers of protons). Isotopes have the same atomic number but different mass numbers. Isotones have the same number of neutrons. Isochores relate to constant volume in thermodynamics.