C4-atoms
- Created by: sophie
- Created on: 13-02-14 19:56
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- Atoms
- The nucleus
- It contains protons and neutrons
- In the middle of the atom
- It has a positive charge because of the protons
- Almost the whole mass of the atom is concentrated in the nucleus
- The electrons
- Move around the nucleus
- They are negatively charged
- They're tiny, but they cover a lot of space
- The volume of their orbits determines how big the atom is
- They virtually have no mass
- They're arranged in shells around the nucleus
- Know your particles
- protons are heavy and positively charged
- neutrons are heavy and neutral
- electrons are tiny and have a negative charge
- number of protons equals number of electrons
- neutral atoms have no charge overall
- The charge of the electrons is the same size as the charge on the protons-but opposite
- The nucleus
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