Beta particle

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/beta-particle

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the energy spectrum?Continuous, due to energy sharing with neutrinos/antineutrinos
2. What is the primary interactions?Ionization, excitation, and Bremsstrahlung (X-ray production)
3. How do beta particles get produced?In beta‑minus decay a neutron turns into a proton, an electron (the beta particle) and an antineutrino. In beta‑plus decay a proton turns into a neutron, a positron and a neutrino.
4. Why do beta particles travel through matter?They move fast and collide with atoms, knocking out electrons or exciting them, which lets them travel a few millimeters in tissue or a few millimeters in aluminum.

Weak Nuclear Force: One of the four fundamental forces, responsible for radioactive decay and neutrino interactions.
Neutrino/Antineutrino: Electrically neutral, weakly interacting elementary particles with very small mass.
Bremsstrahlung: Electromagnetic radiation produced when a charged particle is decelerated by another charged particle, typically a nucleus.
Dosimetry: The measurement and assessment of the radiation dose received by an individual or object.