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What is the rounded atomic mass of potassium?

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The best answer to this question is not 39 amu, but it's how to read the periodic table. A very simple one looks like: Underneath each element is the mass of each element in amu (or atomic mass units). Each amu is equal to 1.67 x 10^-27 kg. read more

Underneath each element is the mass of each element in amu (or atomic mass units). Each amu is equal to 1.67 x 10^-27 kg. There is a wealth of physics and chemistry contained in this table, but starting with the foundations is the best place to start! read more

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