Atomarium: 3D Atom & Chemistry

Atomarium - a pocket chemistry and physics lab.

ATOMS
• All 118 elements with their data, isotopes and electron configuration
• Switch any atom between the Bohr model and its real orbitals: the electron cloud is drawn from the hydrogen-like wave functions, with Slater screening and each element's measured size
• Protons, neutrons and electrons at a glance

MOLECULES
• 455 molecules in 3D: natural ones, synthetic and industrial ones, and everyday ones, each marked natural, synthetic or both
• Ball-and-stick or space-filling, still, spinning or drifting across the screen
• Filter by origin and by field: industry, life, medicine, flavour and scent, minerals, air and space

EQUATIONS
• 224 equations from school to postgraduate level: mechanics, waves, thermodynamics, electromagnetism, relativity, quantum, nuclear, chemistry and maths
• Every symbol explained, with units and CODATA constants
• Solve for any unknown
• Written as in a textbook (fractions, roots, subscripts) and graded for difficulty from 1 to 10
• Graphs for 105 of them: several curves at once, 3D surfaces, paths and field maps

LAB
• Sandbox: drop atoms into a box and watch them collide, bond and react, with real bond energies and angles. Strike a spark to make hydrogen and oxygen burn into water
• Records to beat: biggest explosion, biggest molecule, molecules discovered
• Chemistry from first principles: bonds, ions and shapes come from each atom's electrons (long-press an atom to see why). Cool to 1 K, add gravity, squeeze with a piston and read the pressure, throw clouds of atoms, grow salt, diamond and copper crystals, watch water condense and split it with a battery
• Simulate pairs of atoms and molecules, build your own atom and see which isotope it is, look up reactions
• 13 animated quantum experiments: double slit, Stern-Gerlach, Bell pairs, tunnelling, the photoelectric effect and more

QUIZ
• 16 learning games in three quizzes: Elements, Molecules and Quantum
• Elements: name the 3D atom, symbols, families, particle counts, and "Will it bond?": ionic, covalent or metallic, and which compound forms
• Molecules: spot the molecule, its shape, molar mass, formula and moles
• Quantum: spin states on the Bloch sphere, gates, measurement odds, equations and calculations with worked solutions
• Streak bonus, levels, high scores, 118 player levels and element avatars

LANGUAGES
• English, Français, العربية, Srpski, ไทย, Oʻzbekcha, Tiếng Việt

FREE WITH ADS
• Banner ads on the main tabs and occasional full-screen ads
• An optional ads-free purchase through Google Play removes all ads

No account needed. Your settings and progress are stored on this phone.

Recent changes:
New: choose how often full-screen ads appear (Settings, 1 to 5). Ads now show only between tabs, quizzes and Lab runs, never during a tap, and at most once a minute. Smoother banners on slow connections. Bug fixes.