Dr. Tim: So this is the periodic table and each letter on it represents a different element. We call these letters symbols. And an element is a pure substance made from only one type of atom.

In this periodic table of elements quiz, you have 10 minutes to name as many elements as you can, given only their symbol, ...

For the last fifty or so years, the periodic table has been incomplete ... and these researchers will be able to propose a name and atomic symbol for their discovery. Elements 115, 117, and ...