This question already has an answer here:
Of all the elements of the periodic table, "most" elements with valences of four or less are solids, with most of these being either "metals" or "semiconductors."
On the right hand side of the periodic table, most of the elements are gases at room temperature.
There are only a "handful" of elements that are liquids (at room temperature). The one I can think of is mercury, and maybe there are one or two others that I have missed. Is there a reason why there are so few?
The reason I'm asking is because I expect the qualities of elements to fall on a spectrum. 1)At low temperatures, I expect a lot of solids. 2) At high temperatures, I expect a lot of liquids or gases. At room temperature, most items are solids (case 1). A fair number are gases (case 2). But few are the "intermediate" (liquid) case. Why is that?
The gist of the other question is, what qualifications cause an item to be a solid, liquid or gas at room temperature. My question is, why are these "qualifications" distributed as they are, in a seemingly "bipolar" manner? It would be like asking, why at a certain university, most GPA's are around 3.0, the second most around 4.0, but there are very few 3.5s (the intermediate case).