103389
Descrição
Notas por sophiestone23, atualizado more than 1 year ago
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Criado por sophiestone23
mais de 11 anos atrás
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Página 1
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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