๐Ÿชintro to astronomy review

key term - Positron

Definition

A positron is the antimatter counterpart of an electron, possessing the same mass but a positive charge. When a positron encounters an electron, they annihilate each other, producing gamma rays.

5 Must Know Facts For Your Next Test

  1. Positrons are produced during beta plus decay in nuclear reactions.
  2. In the Sun, positrons are created during proton-proton chain reactions.
  3. The annihilation of a positron and electron releases energy in the form of gamma rays.
  4. Positron emission is a process that helps balance charge in certain types of radioactive decay.
  5. Detection of positrons can provide information about processes happening inside stars.

Review Questions

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