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Health Sciences 15 Online
OpenStudy (lwilbur1):

The atomic mass of an element is equal to the: atomic number number of protons number of protons and neutrons mass of protons, neutrons, and electrons

OpenStudy (somy):

what do u think?

OpenStudy (anonymous):

2

OpenStudy (kvccia):

Its protons, neutrons and elections , the last answer choice, your welcome ;)

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