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kayboo15
 3 years ago
The mass number of an atom is obtained by totaling the number of _____ and _____. (1 point)
electrons and protonselectrons
neutronsprotons and neutrons
neutrons and isotopes
kayboo15
 3 years ago
The mass number of an atom is obtained by totaling the number of _____ and _____. (1 point) electrons and protonselectrons neutronsprotons and neutrons neutrons and isotopes

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anunisha
 3 years ago
Best ResponseYou've already chosen the best response.1total number of protons and neutrons in the nucleus

TomLikesPhysics
 3 years ago
Best ResponseYou've already chosen the best response.0You get the mass when you add up the number of protons and neutrons in the core. The electrons do not matter in that calculation.
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