Atom Builder ← Molecule Lab

Atom Builder

Add protons, neutrons and electrons and see what you built. Protons decide which element it is, neutrons decide how heavy, electrons decide the charge.
Protons
0
Neutrons
0
Electrons
0
?
Nothing yet
Add a proton to start.
Protons (atomic number)0
Neutrons0
Electrons0
This atom weighs0
Periodic table average—
Charge (p − e)0
Shells—
Tap + under Protons.

What just happened

Every atom is protons and neutrons in the middle, with electrons whizzing around the outside.

Challenges Level 1

Elements found 0

v6