3 years ago

The atomic mass of an atom (in amu) is equal to

1 answer:

5 0

An atomic mass unit (symbolized AMU or amu) is defined as precisely 1/12 the mass of an atom of carbon-12. The carbon-12 (C-12) atom has six protons and six neutrons in its nucleus. In imprecise terms, one AMU is the average of the proton rest mass and the neutron rest mass.

To calculate the atomic mass of a single atom of an element, add up the mass of protons and neutrons.

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