There are lots of different substances but only just over a hundred elements. An element is a substance that is made up of only one kind of atom. The atoms in a particular element are the same as each ...

The chemical symbol for oxygen is O. Makes sense. Calcium gets repped by a Ca. Sounds good. Hydrogen? H. Cobalt? Co. Lithium? Li. With you so far. Lead? Pb. There are actually a few things that help ...

The periodic table, also called the periodic table of elements, is an organized arrangement of the 118 known chemical elements. The chemical elements are arranged from left to right and top to bottom ...

It happens all over the periodic table. The chemical symbol for lead is Pb. For mercury, Hg. For antimony, Sb. My chemistry teacher in high school cracked up every time she referred to the symbol for ...