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.
Hg
Co
Ar
Cl
H
Zn
C
N
Ra
Ba
Al
Fe
Sn
U
Pt
Ca
Cu
O
Mg
Au
He
Pb
Li
Ag