If an atom contains 12 protons and 10 neutrons, what's its mass number?
a. 12
b....
Chemistry, 09.10.2019 21:00, dyanaycooper13
If an atom contains 12 protons and 10 neutrons, what's its mass number?
a. 12
b. 10
c. 22
d. 2
Answers: 2
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