Random Nature of Radioactive Decay (OCR GCSE Physics A (Gateway Science Suite)): Flashcards
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12 cards from this deck
Range of alpha particles in air?
Range of alpha particles in air?
About 5 cm
Range of beta particles in air?
Range of beta particles in air?
About 15 cm
Range of gamma radiation in air?
Range of gamma radiation in air?
Several metres
What stops alpha particles?
What stops alpha particles?
Single sheet of paper
What stops beta particles?
What stops beta particles?
Few millimetres of aluminium
What stops gamma radiation?
What stops gamma radiation?
Several centimetres of lead
Ionising power of alpha particles?
Ionising power of alpha particles?
Very strongly ionising
Ionising power of beta particles?
Ionising power of beta particles?
Quite strongly ionising
Ionising power of gamma radiation?
Ionising power of gamma radiation?
Weakly ionising
What happens when radiation collides with atoms?
What happens when radiation collides with atoms?
Atoms lose electrons and form ions
Order by ionising power (strongest first)
Order by ionising power (strongest first)
Alpha, beta, gamma
Order by penetrating power (weakest first)
Order by penetrating power (weakest first)
Alpha, beta, gamma