Think you know your periodic table of elements? Time to put your knowledge to the test with this CheMessedry Periodic Table of Elements Game! Just enter an element name (for example "Hydrogen") and it will automatically appear in the periodic table below. After you have uncovered all the ones you know, click the gold colored button to reveal the ones you missed. It will have a white background so you will know which ones you got. You can also look up information by clicking on an element box once it has been uncovered. You have 30 minutes, good luck!