Physics Radioactivity Topic- Key Knowledge Flashcards by Lia Nelson

Q

What is an isotope?

A

A nucleus with the same number of protons but a different number of neutrons.

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Q

What is an alpha particle?

A

2 protons and 2 neutrons
Highly ionising
Least penetrating (blocked by paper)

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Q

What is a beta particle?

A

A fast moving electron
Mildly ionising
Mildly penetrating (Blocked by aluminium sheets)

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Q

A

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