Date: 2017-04-11 17:32
Hydrogen is the lightest element, and it is also the most abundant one. Hydrogen has important commercial applications, for example, hydrogen fuel cells and the manufacture of chemical products. Uranium is the heaviest element that occurs freely in nature. Ununoctium is heavier and the heaviest known chemical element, but it is manmade.
Tom Lehrer’s The Elements. A Flash animation by Mike
Does everyone in…