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If an elements atomic mass is 70 and it has 39 neutrons how many protons does it have?

User Keyshia
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2 Answers

7 votes
31- mass is made up of protonsand neutrons only because electrons have very little mass
User Ubernator
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1 vote
It has 70 protons. The atomic mass is the same as the amount of protons
User Benchik
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