The atomic mass of potassium is 39.0893
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Francium has a greater atomic mass than potassium. Francium has an atomic mass of around 223 u while potassium has an atomic mass of around 39 u.
The atomic number of potassium is 19.The atomic weight of potassium is 39,0983(1).The mass number of the isotope potassium-39 is 39.
The nearest Whole number of atomic mass of potassium is 69
The atomic mass of potassium (K) is approximately 39.10 grams per mole.
The atomic mass of potassium (K) is approximately 39.10 atomic mass units (amu).