Periodic IQ

Can you name all 118 elements? Periodic IQ puts your chemistry knowledge to the test!

See a chemical symbol like Cu — pick the right element name from four choices. Or flip it around in Reverse mode: see the element name, pick the right symbol from H, He, Fe, Hg.

FEATURES:

• 118 elements from Hydrogen to Oganesson

• 11 IUPAC group categories — Alkali Metals, Noble Gases, Transition Metals, and more

• Standard mode: symbol → name

• Reverse mode: name → symbol

• Bucket-aware difficulty — wrong answers come from the same chemical group, so you actually learn

• Daily Challenge — one new element every day

• 25 achievements to unlock — master every group and earn the Periodic Completionist badge

• Dark-mode first design with a gold-on-charcoal periodic-table aesthetic

• Available in 60 languages — just use your device language

Whether you're studying for an exam, teaching a class, or just curious about chemistry, Periodic IQ makes the periodic table unforgettable.

Download now and start your first reaction!