Weighted randomisation across all 118 elements — common elements appear more often, but heavy and rare elements are always in play. Every session is unique.
All 118 elements · weighted randomisation · 3 question formats
You know your elements.
Common elements (H, O, C, Fe…) appear 50% of the time. Rare and heavy elements still get their turn.
Find by name, identify by symbol, or match atomic number — randomly mixed every session.
From Hydrogen to Oganesson — the full periodic table is covered across every play session.