First, let's cover the basics. A pure substance is made from only one compound or just one element with no other substances mixed in. Hold up those two glasses, Katie. Imagine the pompoms ...

Since real gold can be found on the periodic table, that makes it an element. Elements are a type of matter known as a pure substance. Elements cannot be broken down into simpler substances. They are ...

We also, confusingly, tend to refer to pure substances made of one kind of atom, like chlorine gas, as elements. But these are very different from the isolated atoms depicted on the periodic table.

That pun is based on the fact that the main building blocks in the branch of science are chemical elements, pure substances ...

First, let's cover the basics. A pure substance is made from only one compound or just one element with no other substances mixed in. Hold up those two glasses, Katie. Imagine the pompoms ...