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Ymorist [56]
3 years ago
9

What is the mass number of an alpha particle? (1) 1 (3) 0 (2) 2 (4) 4

Chemistry
2 answers:
Lesechka [4]3 years ago
6 0
Your answer is (4) 4, because the alpha particle is a helium nucleus (either an ion or an ejected particle from alpha decay), and it has a mass number of 4, being consisted of four nucleons, (2 protons and 2 neutrons).
Alchen [17]3 years ago
4 0
(4) 4 is your answer because 4 is the mass number of an alpha particle. 
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