7201408
Description
Mind Map by Oscar Patterson, updated more than 1 year ago
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Created by Oscar Patterson
over 7 years ago
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Atomic structure
- Electron shells
- rules:
- 1st shell = 2 electrons
- 3rd shell = 8 electrons
- 2nd shell = 8 electrons
- 1st shell = 2 electrons
- electrons always move in shells
- rules:
- Atoms
- particles:
- Electron (-)
- move in shells around neucleus
- move in shells around neucleus
- proton (+)
- number of protons equals number of electrons
- number of protons equals number of electrons
- Neutron (0)
- Electron (-)
- no charge overall. they're Neutral
- particles:
- Atomic Number
- Number of protons
- Number of protons
- Mass Number
- total number of protons and neutrons
- total number of protons and neutrons
- Relative Atomic Mass
- Is an Average
- Is an Average
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