This printable bingo card set on the topic of Elements & Periodic Table has 20 unique items on a 4x4 grid. Each card draws from a pool of 20 items, so every player gets a different card.
Hydrogen
Helium
Lithium
Beryllium
Boron
Carbon
Nitrogen
Oxygen
Fluorine
Neon
Sodium
Magnesium
Aluminium
Silicon
Phosphorus
Sulfur
Chlorine
Argon
Potassium
Calcium