Multiple choice

Almost the entire mass of an atom is in the nucleus. Which of the following are present in the nucleus?

  1. Electrons

  2. Electrons and protons

  3. Protons

  4. Protons and neutrons

  5. Neutrons

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

This is the correct option. Protons as well as neutrons are present in the nucleus of an atom.