What format are answers?

Numbers or element symbols; ion charges use +/-.

What level is it for?

Middle/high-school atomic structure and chemistry contest basics.

Where is progress stored?

Only in local localStorage, never uploaded; full backup/restore is available.

LEARNING GAME

Atomic Structure: 1000 Gamified Proton, Neutron and Electron Cards

Turn atomic structure into level cards: read the element/ion, compute protons, neutrons, electrons, then reveal; 20 cards per level. It covers proton numbers, symbols, mass, ion electrons and isotope neutrons.

0Due today

0New cards

0Day streak

0Lv.1 · 0/100

Progress is stored locally in localStorage and is lost if you clear storage. Reviews use 1/3/7/14/30/60/120-day intervals.