Multiple choice

In an atomic nucleus, neutrons and protons are held together by

  1. gravitational forces

  2. magnetic forces

  3. strong forces

  4. coulombic forces
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The strong nuclear force is the fundamental force that binds protons and neutrons together in the atomic nucleus. It overcomes the electromagnetic repulsion between positively charged protons and is approximately 100 times stronger than electromagnetic forces at nuclear distances. Gravitational forces are negligible at this scale, while magnetic and coulombic forces are electromagnetic in nature.

Keep practicing — related questions