Simulación Phet & GraphOverFlow – Atoms and Particles

All matter is made up of tiny particles called atoms.

Everything is made of atoms.

There are about one hundred different atoms in the Universe.

Atoms are made of particles.

Atoms are small. Super small. Really really super tiny. Particles are even smaller.

In phet.colorado.edu you can simulate the number of protons, neutrons and electrons:

In this webpage you can simulate atoms according to Böhr Model (proposed in 1913), now outdated. My favorite element is gold: