There are six elements that exist in liquid form around room temperature and pressure. Most people can name mercury as a liquid element. Can you name the other four elements? I'll give you a hint. One is francium, though it hasn't actually been seen to be a liquid (not enough has been prepared to directly observe its characteristics). Two of the other liquid elements can be found with francium on the periodic table.
Photo: No, it's not mercury. Can you guess which metal this is? (Justin Urgitis)