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9th Grade Nuclear Radioactivity Quizzes , Questions & Answers

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Radioactivity Quiz: Test Your Knowledge Of Nuclear Decay

This assessment focuses on radioactivity and nuclear decay, evaluating knowledge of key concepts such as the SI unit of activity and the role of protons in element transformation. It is relevant for learners seeking to deepen...

Questions: 20 | Attempts: 35 | Last updated: Mar 13, 2026

Sample Question 1
Radioactivity is the process where an unstable nucleus:

Becomes a stable atom by chemical reaction

Emits particles or energy to become more stable

Turns into a magnet

Stops having protons

Sample Question 2
Radioactive decay comes from the nucleus, not the electrons in the outer shells.

True

False

Sample Question 3
Which type of radiation is a helium nucleus (2 protons and 2 neutrons)?

Beta (β)

Alpha (α)

Gamma (γ)

X-ray

9th Grade Nuclear Radioactivity Quizzes , Questions & Answers

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