WBCS.LIVE practice question

An atom of an element differs from an atom of one of its isotopes in the number of

Solve this multiple-choice question and check the correct answer with its explanation below.

Answer options

  1. Neutrons in the nucleus
  2. Protons in the nucleus
  3. Valence electrons
  4. Protons outside the nucleus

Correct answer and explanation

Correct answer: Neutrons in the nucleus

Explanation: āœ… Correct Answer: A. Neutrons in the nucleus šŸ“š Explanation: Isotopes are atoms of the same chemical element that have the same number of protons but a different number of 'Neutrons in the nucleus'. This difference in neutron count gives them different atomic masses. For example, Carbon-12 and Carbon-14 are isotopes with the same number of protons (6) but 6 and 8 neutrons respectively. This concept is fundamental to understanding nuclear chemistry and atomic structure.