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An atom's mass number equals the number of a protons plus the number of electrons. b. protons plus the number of neutrons. C. protons. d. neutrons. Please select the best answer from the choices provided
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An atom's mass number equals the number of

a protons plus the number of electrons.
b. protons plus the number of neutrons.
C. protons.
d. neutrons.
Please select the best answer from the choices provided

User Undine
by
5.8k points

1 Answer

5 votes

Answer:

b

Step-by-step explanation:

Mass number consist of number of proton and neutron in an atom

User Squirly
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