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A, the mass number, is equal to... A. neutrons + electrons B. protons + neutrons C. protons + electrons D. protons
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5 votes
A, the mass number, is equal to...

A. neutrons + electrons

B. protons + neutrons

C. protons + electrons

D. protons

A, the mass number, is equal to... A. neutrons + electrons B. protons + neutrons C-example-1
User Karup
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2 Answers

4 votes
B

The mass number is how many protons and neutrons are in an atom’s nucleus
User Liezel
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2 votes

Answer:

B.

Step-by-step explanation:

User Jeremy Frey
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4.3k points
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