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An electrically neutral atom consists of 5 neutrons, 4 electrons, and 4 protons. What is its mass number? 4 3 9 8
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23 votes
An electrically neutral atom consists of 5 neutrons, 4 electrons, and 4 protons. What is its mass number?

4
3
9
8

User Coeffect
by
7.1k points

1 Answer

6 votes

Answer:

9

Step-by-step explanation:

Mass number is the amount of protons and neutrons added together

User Pldg
by
8.8k points
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