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OpenStudy (anonymous):
The mass number of an atom is obtained by totaling the number of _____ and _____. (1 point)
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OpenStudy (adamaero):
it's either protons, neutrons or electrons. this is very simple.
OpenStudy (perl):
neutrons + protons
OpenStudy (perl):
electrons can vary (ionic)
OpenStudy (adamaero):
it was a chance to give them a chance at figuring it out. I knew the answer
OpenStudy (adamaero):
this site might as well be called openanswers
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