Hone your oxidation state assignment skills using this mahjong-inspired web app.
You can also use this resource to practice memorizing the periodic table, assigning the number of valence electrons, identifying isoelectronic species and more! Change the game at the top above the board space using the drop down and then click “New Game” to start.
It is also available for download in the Android & Apple market for mobile devices. See the link at the bottom of the game board for more information.