CBSE Class 9 Answered
What are α-particles?
Asked by Topperlearning User | 30 Mar, 2016, 17:17: PM
α-particles are doubly-charged helium ions. Since they have a mass of 4 u, the fast-moving α-particles have a considerable amount of energy.
Answered by | 30 Mar, 2016, 19:17: PM
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