Why are the numbers in an element’s atomic mass the same as the numbers in its molar mass ignoring the units?
In: 3
Because we defined one mole of protons to be the number of particles that weighs 1 gram (basically…there’s some nuance to that). And protons and neutrons weight essentially the same thing, so the atomic mass (# of protons an neutrons) will be the mass of 1 mole of the thing.
Electrons do have some weight but it’s so tiny that it doesn’t really make a difference.
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