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Atomic Theory Class Notes
Neutrons and protons are inside the nucleus, electrons are outside the nucleus.
You can’t see the actual atoms, what you can see are the electron vibrations of the
atoms.
The atom is mostly empty space with a nucleus. And that nucleus is 100K times smaller
than the width of the atom.
The model is a representation of the image of the outer electron shell.
There are two basic components in every atom: electron cloud and nucleus.
Proton
Positive (+)
Nucleus
Neutron
No Charge (0)
Nucleus
Electron
Negative (-)
Electron Cloud
The atomic theory has changed over time as new technologies have become available.
Scientific knowledge: builds on past research and experimentation.
Neils Bohr: Electrons are located in orbits around the nucleus in certain energy levels.
The Modern Atomic Theory: electrons move at high speeds in an electron cloud around
the nucleus.