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P2.7
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an unstable nucleus becomes more stable by emitting an alpha or a beta particle or a gamma radictiation.
an alpha particles consist of two protons and two neutrons. When an unstable particle emits an alpha particle , its atomic number goes down by 2 and its mass goes down by 4.
Beta radiation is ionising radiation from space from devices such as x rays
nuclear reactions
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- physics Apunte sobre P2.7, creado por sophiestone23 el 22/05/2013.
- Creado por
- sophiestone23 · may 2013
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- 8 nov 2016
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