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Alpha beta and gamma. What is radioactive decay?. What is alpha ( α ) radiation?. 2 neutrons, 2 protons. Description . Note: – An alpha particle is the same as a helium nucleus. +2. Electric charge. 4. Relative atomic mass. Stopped by paper or a few centimetres of air. Penetrating power.
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What is alpha (α) radiation? 2 neutrons, 2 protons Description Note:– An alpha particle is the same as a helium nucleus +2 Electric charge 4 Relative atomic mass Stopped by paper or a few centimetres of air Penetrating power Strongly ionizing Ionizing effect Effect of magnetic/ electric field Weakly deflected
What is beta (β) radiation? High energy electron Description -1 Electric charge 1/1860 Relative atomic mass Stopped by a few millimetres of aluminium Penetrating power Weakly ionizing Ionizing effect Effect of magnetic/ electric field Strongly deflected
Gamma () radiation High energy electromagnetic radiation Description 0 Electric charge 0 Relative atomic mass Stopped by several centimetres of lead or several metres of concrete Penetrating power Very weakly ionizing Ionizing effect Effect of magnetic/ electric field Not deflected