Related: Inside the 20-year quest to unravel the bizarre ... In this periodic table of elements quiz, you have 10 minutes to ...

The symbol serves as a shorthand notation for each element's name in formulas and equations ... mnemonics to help you remember the first 20 elements of the periodic table: H - Hydrogen He ...

It's important to use the names and chemical symbols for the first 20 elements in the periodic table, as well as the elements in groups 1 and 7.