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The atomic mass is the

number of protons plus the number of neutrons
number of protons plus the number of electrons
number of neutrons
number of protons
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User Matt Tew
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2 Answers

6 votes

Answer:

Atomic mass is the number of protons and number of neutrons

Step-by-step explanation:

User Zaeem
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5 votes
Atomic mass = number of protons and number of neutrons.
User Paul Strack
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