🔋college physics i – introduction review

key term - Gamma decay

Definition

Gamma decay is a type of nuclear decay where an excited nucleus releases excess energy in the form of gamma rays, which are high-energy photons. This process does not change the number of protons or neutrons in the nucleus.

5 Must Know Facts For Your Next Test

  1. Gamma decay typically follows alpha or beta decay as the nucleus moves to a lower energy state.
  2. Gamma rays emitted during gamma decay have no mass and no charge.
  3. The emission of gamma rays does not affect the atomic number or mass number of the element.
  4. Gamma radiation is highly penetrating and can pass through most materials, requiring dense shielding like lead for protection.
  5. $E = h\nu$ describes the energy of gamma photons, where $h$ is Planck's constant and $\nu$ is the frequency of the photon.

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