How do I solve this?

asked Feb 21, 2022 121k views

3 votes

by Zenoh

5.0k points

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2 votes

Answer:

Step-by-step explanation:

Particles inside the nucleus = protons + neutrons = mass number = 84

particles outside = electrons number = atomic number

Edu Ruiz answered Feb 25, 2022

5.5k points

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