heat3hlCarlendo heat3hlCarlendo

07-08-2016
Chemistry

Answered

The mass number of an atom is obtained by totaling the number of _ and _.

Aelectrons and protonselectrons
Bneutronsprotons and neutrons
Cneutrons and isotopes

Verified Answer :

akiyama316 akiyama316

06-09-2017

Mass number is the sum of protons and neutrons inside an atom.

Atomic mass = no. of protons + no. of neutrons

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Anonymous Anonymous

11-09-2018

the sum of protons and neutrons inside an atom is your answer

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