This printable bingo card set on the topic of Elements & Periodic Table has 24 unique items on a 4x4 grid. Each card draws from a pool of 24 items, so every player gets a different card.
Sulfite
Sulfate
Acetate
Perchlorate
Nitrite
Nitrate
Permanganate
Dichromate
Chlorate
Phosphate
Hypochlorite
Ammonium
Carbonate
Chlorite
Chromate
Cyanide
Hydrogen carbonate
NO3 1-
SO4 2-
PO4 3-
OH 1-
CO3 2-
NH4 1+
CN 1-