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nata0808 [166]
3 years ago
13

What is the mass of an atom that has 4 protons, 5 neutrons, and 4 electrons? Please explain. This is a final exam question. Plea

se make sure that you are sure of the answer!
5

8

9

13
Physics
1 answer:
12345 [234]3 years ago
5 0

Answer:

9

Explanation:

You get this answer by adding the protons and neutrons together.

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