I created a clean, minimalistic periodic table for my students that contains a customized list of common multiple-charge ions and polyatomics on the back. It still needs work, but it’s pretty good.
I’ve decided to share this with you as a token of my appreciation! Feel free to download this periodic table and share it with your friends. I plan to visually update it soon, but perfection is the enemy of the good, so take it and make a difference.