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If an atom has a mass of 15 and an atomic number of 9. How many neutrons are in the atoms?
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4 votes
If an atom has a mass of 15 and an atomic number of 9. How many neutrons are in the atoms?

User Madrugada
by
7.6k points

2 Answers

4 votes
mass= protons + neutrons
15-9=6
6 neutrons
User JerabekJakub
by
8.5k points
3 votes
number of neutrons = mass number - atomic number
= 15 - 9
= 6
User Ryanmt
by
8.3k points
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