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13 April, 02:12

An alpha particle has a mass number of 2.

a. True

b. False

+2
Answers (1)
  1. 13 April, 02:56
    0
    B. False. An alpha particle is a Helium nucleus which has a mass of 4 as it is made from 2 neutrons and protons each with mass of + 1.
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