Ever wonder what the atomic number is for radium whilst drinking your morning cup o' joe? Well, now you can find out with our handy Periodic Table Coffee Mug!

Squares' colors represent the type of group (alkali metals, noble gasses, etc.) while the letter colors represent whether it's a solid, gas, liquid or synthetic element. Chart information includes atomic number, symbol element and atomic weight.

The perfect gift for the caffine-addicted chemist in your life!