Question

Which sentences describe alpha particles? Check all that apply.

Alpha particles consist of two protons and two neutrons.

Alpha particles consist of a negatively charged electron emitted by a nucleus.

Alpha particles are produced during alpha decay.

Alpha particles are produced during beta decay.

Alpha particles release energy.

Answer 1

Correct: 1, 3, and 5.

- 1 (True): An alpha particle is a helium nucleus — two protons and two neutrons.
- 3 (True): Alpha particles are emitted in alpha decay.
- 5 (True): Alpha particles carry and deposit energy (the decay releases energy carried by the emitted alpha).

Incorrect:
- 2 (False): A negatively charged electron emitted by a nucleus is a beta (β−) particle, not an alpha.
- 4 (False): Beta decay produces beta particles (electrons or positrons), not alpha particles.