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Naily [24]
2 years ago
12

How to find nuetrons

Chemistry
1 answer:
ValentinkaMS [17]2 years ago
3 0
To find the number of neutrons, subtract the number of protons from the mass number. number of neutrons=40−19=21.
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Answer:

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Explanation:

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3 years ago
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Stolb23 [73]
A<span>. </span>
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hope that's right and hope i helped




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Hi,
The answer should be C.

Hope this helps, if you’d like further explanation please let me know.
4 0
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