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lbvjy [14]
3 years ago
8

What is the total number of neutrons in the nucleus of a neutral atom that has 19 electrons and a mass of 39?

Chemistry
1 answer:
JulsSmile [24]3 years ago
3 0
20 because
mass no=electrons+neutrons
so to find neutrons
mass no-electrons=neutron
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<h3>Further explanation</h3>

Given

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