What is the mass in grams of one mole of the element containing 12 protons?

1 Answer
anor277
Aug 30, 2017

Well, if it has got 12 protons, then #Z=12#.........

Explanation:

And if #Z=12#, then we gots the element magnesium. Now of course a magnesium atom contains not only the 12 protons; it also contains 12-13 neutrons, massive, UNCHARGED, nuclear particles.

And so we have a mass of #24.3*g#. How did I know this mass? Well, I have access to a Periodic Table. Is there one by your side?

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