Just something for me to practive chemistry
For the atomic mass and valencies, you can answer 'IDK' to skip them if they are too difficult or irrelevant.
The Failure and Stooid memes are by Steven He and the brain images were take from a random brain expanding meme.
Link: https://grimreaper2654.github.io/Chemistry-Revision/Game/main.html
Warning: Getting the answer wrong repeatedly might lead to being rickrolled...