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Physics 18 Online
OpenStudy (anonymous):

What determines the atomic mass of an element? A. the sum of the protons and the neutrons B. the sum of the neutrons and the electrons C. the sum of the protons and electrons D. the sum of the ions and isotopes

OpenStudy (anonymous):

@Luigi0210 heelppp pleassee

OpenStudy (luigi0210):

Protons and neutrons :P

OpenStudy (anonymous):

THANK UUU

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