Flashcards in P7 - Radioactivity Deck (8)
What does a radioactive substance contain?
an unstable nuclei that becomes stable by emitting radiation
3 main types of radiation?
α - Alpha
β - Beta
γ - Gamma
Most penetrating radiation?
Least penetrating Radiation?
How does a Geiger counter work?
It clicks each time a particle of radiation enters the tube
Who discovered alpha and beta radiation?
Energy is released in a nuclear reactor because of...