What is the symbol used to represent an alpha particle?

What is the symbol used to represent an alpha particle?

  1. α ✓
  2. β
  3. γ
  4. δ

Explanation

The symbol α represents alpha particles. Alpha particles are helium nuclei with 2 protons and 2 neutrons. They have positive charge.

β represents beta particles (electrons). γ represents gamma rays (high-energy light). δ is not used for radiation.

Remember: Alpha, beta, gamma are the three main types of radioactive decay.