Atoms & Nuclear Radiation (AQA GCSE Physics): Flashcards
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Practise the cards
14 cards from this deck
What nuclear equations show
What nuclear equations show
Radioactive decay of unstable nuclei
Nuclear equations must always...
Nuclear equations must always...
Balance (total mass & charge stay same)
Three types of nuclear radiation
Three types of nuclear radiation
Alpha, beta, gamma
What is an alpha particle?
What is an alpha particle?
Helium nucleus (2 protons, 2 neutrons)
Alpha decay: mass number change
Alpha decay: mass number change
Decreases by 4
Alpha decay: atomic number change
Alpha decay: atomic number change
Decreases by 2
Alpha particle notation
Alpha particle notation
Beta decay: what happens to neutron?
Beta decay: what happens to neutron?
Changes into proton and electron
Beta decay: mass number change
Beta decay: mass number change
Stays the same
Beta decay: atomic number change
Beta decay: atomic number change
Increases by 1
Beta particle notation
Beta particle notation
Gamma rays: mass and charge
Gamma rays: mass and charge
No mass or charge
Balancing rule for mass numbers
Balancing rule for mass numbers
Must add up to same total on both sides
Balancing rule for atomic numbers
Balancing rule for atomic numbers
Must add up to same total on both sides