Atomic Structure

Ene Oruma
Mind Map by Ene Oruma, updated more than 1 year ago
Ene Oruma
Created by Ene Oruma over 3 years ago
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Overview of the main feature of the srtucture of an atom
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Atomic Structure
1 sub-atomic particle
1.1 protons
1.1.1 +ve charge
1.1.2 1 unit
1.2 neutrons
1.2.1 no charge
1.2.2 1 unit
1.3 electrons
1.3.1 -ve charge
1.3.2 1/1840 units
1.4 Nucleus
2 atomic Number
2.1 the No' of P+
3 Mass Number
3.1 No' of P+ plus Neuts
4 Atomic Shells
4.1 1st shell max 2e-s
4.2 2nd & 3rd shells max 8e-s
5 Valency
5.1 Grp No' = No' of e-s in the outer shell
5.1.1 Grp I = 1e-s in outer shell
5.1.1.1 Grp 2 = 2 e-s in outer shell
6 elements with a full shell of e-s are stable
6.1 Noble gases Grp VIII
7 History
7.1 Thomson -solid sphere model
7.2 Rutherford Plum pudding model
7.3
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