Atoms
- Created by: Olivia
- Created on: 19-03-14 18:03
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The Nucleus:
- Its in the middle of the atom
- It contains protons and neutrons
- It has a positive charge because of the protons
- Almost the whole mass of the atom is concentrated in the nucleus
- But size wise its tiny compared to the rest of the atom.
The electrons:
- They move around the nucleus in energy levels called shells
- They are negitavely charged
- They're tiny, but they cover a lot of space
- The size of their orbits determines how big the atom is
- They…
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