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Physics 25 Online
OpenStudy (anonymous):

The atomic mass of an element is equal to the number of?

OpenStudy (anonymous):

Just remember that most of the mass of an atom is in its nucleus, Its electrons are ALMOST mass-less. Therefore the two main subatomic particles in the nucleus of an atom are the proton and the neutron. ( atomic mass= number of protons + neutrons)

OpenStudy (anonymous):

Atomic mass is equal to no of proton and neutron present in nucleous of atom.

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