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Chemistry
Build an atom
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From particles to atoms
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Proton
Neutron
Electron
00
—No element yet
- Mass number
- 0
- Net charge
- 0
Protons determine the element. Adding neutrons changes the isotope; adding electrons changes charge without changing the element.
Model notes
- Particle sizes and distances are not to scale. Shells and clouds are simplified representations, not actual electron paths.
- Unstable and short-lived configurations are allowed to explore particle counts. Shaking indicates instability; nuclear decay is not modeled.
- There are 10 protons, 13 neutrons and 10 electrons. The two shells hold 2 and 8 electrons.