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SS1: CHEMISTRY - 1ST TERM

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  1. Introduction to Chemistry and Laboratory Apparatus | Week 1
    5 Topics
    |
    1 Quiz
  2. Nature of Matter | Week 2
    3 Topics
    |
    1 Quiz
  3. Separation Techniques I | Week 3
    1 Topic
    |
    1 Quiz
  4. Separation Techniques II | Week 4
    5 Topics
    |
    1 Quiz
  5. Particulate Nature of Matter I | Week 5
    5 Topics
    |
    1 Quiz
  6. Particulate Nature of Matter II | Week 6
    9 Topics
    |
    1 Quiz
  7. Symbols, Formulae & Oxidation Number | Week 7
    7 Topics
    |
    1 Quiz
  8. Laws of Chemical Combination | Week 8
    4 Topics
    |
    1 Quiz
  9. Chemical Equation & Chemical Combination (Chemical Bonding) I | Week 9
    4 Topics
    |
    1 Quiz
  10. Chemical Combination (Chemical Bonding) II | Week 10
    4 Topics
    |
    1 Quiz
  11. Chemical Combination (Chemical Bonding) III & Shapes of Covalent Molecules | Week 11
    3 Topics
    |
    1 Quiz



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Symbols of Elements

A symbol represents an atom. The modern symbols were developed by Berzelius in 1814. He used either the first letter or the first and any other letter in the name of the element as a symbol.

Some names of elements and their symbols are listed in the tables below:

1. Elements with the first letter of their names as a Symbol

Element SymbolAtomic Number 
HydrogenH1
CarbonC6
Boron B5
FluorineF9
SulphurS16
IodineI53
PhosphorusP15
Nitrogen N7

2. Elements with the first two letters as a Symbol

Element SymbolAtomic Number 
HeliumHe2
BerylliumBe4
LithiumLi3
NeonNe10
AluminiumAl13
SiliconSi14
ArgonAr18
CalciumCa20
BromineBr35
BariumBa56

3. Elements with the first letter and any other letter from the name as a Symbol

Element SymbolAtomic Number 
MagnesiumMg12
ChlorineCl17
ChromiumCr24
ManganeseMn25
ZincZn30

4. Elements that derive a symbol from their Latin names

Element Latin NameSymbolAtomic Number 
SodiumNatriumNa11
PotassiumKaliumK19
IronFerrumFe26
CopperCuprumCu29
SilverArgentumsAg47
TinStanniumSn50
GoldAurumAu79
MercuryHydrangyumHg80
LeadPlumbumPb82

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