| ppefmh | Ed | Garstin | 1/2 |  |
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Alpha decay has taken place. We can see this as the atomic number has decreased by 2 and the mass number has decreased by 4.

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Beta decay has taken place. We can see this as the atomic number has decreased by 2 and the mass number has increased by 4.
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Gamma decay has taken place. We can see this as the atomic number has increased by 2 and the mass number has increased by 4.
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Beta decay has taken place. We can see this as the atomic number has increased by 1 but the mass number has not changed.
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Alpha decay has taken place. We can see this as the atomic number has decreased by 1 but the mass number has not changed.
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Gamma decay has taken place. We can see this as the atomic number has increased by 1 but the mass number has increased by 1.

| 50% |