Why does calcium have higher boiling point than potassium? :confused:

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Originally Posted by chemy

Why does calcium have higher boiling point than potassium? :confused:

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I think it has something to do with the atomic weight of each one.

I think it has to do with stability. The stability of elements tend to rise towards the right through the periodic table up to the transition elements and back down to the halogen. If you follow my hypothesis, Calcium being between the group where potassium is found and the transition elements, it would be more stable, thus higher boiling point.