Dalton — Living Atoms is a hands-on chemistry sandbox where you build molecules one atom at a time and watch chemistry come to life on an interactive canvas.

Drag atoms together, form covalent and ionic bonds, balance charges, and assemble real compounds — from water and table salt to complex organics. Pinch to zoom, drag to rearrange, and let the bonding rules guide you toward stable structures.

WHAT YOU CAN DO

• Sandbox mode — Build anything you like, atom by atom, with realistic bonding and formal charges.

• Discovery challenges — Take on 600+ real compounds across Easy, Medium, and Hard tiers. Track your progress, use hints when you're stuck, and restart the full challenge anytime.

• Element explorer — Browse the periodic table and learn each element's properties, valence, and place in the bigger picture.

• Structure tools — See the SMILES, InChI, and InChIKey for what you build, and check whether your structure is valid.

• Convert & import — Switch between SMILES and InChI, or build a molecule directly from a SMILES or InChI code.

BUILT TO JUST WORK

• Works offline — A large built-in chemistry library means you can keep building without a connection.

• Smarter when online — Connect to enrich structures with live PubChem data.

• Clean, dark interface designed for focus, with optional interface sounds and music.

WHO IT'S FOR

Whether you're a chemistry student learning bonding and structure, a teacher looking for an interactive classroom tool, or just curious how molecules fit together, Dalton makes chemistry tangible and fun.

Start simple, then work your way up to the toughest molecules in the catalog. Every atom counts.

Note: Dalton is an educational tool for learning and exploration, not a substitute for laboratory work or professional chemistry software.