urbana
urbana
13-11-2017
Chemistry
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how does atomic mass differ from atomic number
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jlara00
jlara00
13-11-2017
The atomic mass is the average mass of all the isotopes. The atomic number is the number of protons in the nucleus of an atom. In an uncharged atom the atomic number is also equal to the number of electrons.
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sarah302
sarah302
13-11-2017
One is weight and one is amount
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