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Class – IX
Subject – chemistry
Topic – Formula of compounds
Name of element = Oxygen
Name of element=hydrogen
Valency of hydrogen = 1
Valency of Oxygen = 2
Name of element = sodium
Name of element=chloride
Valency of sodium= 1
Valency of chloride = 1
Symbol Na Cl
Valency 1 1
Name of element = Aluminium
Name of element=Oxide
Charge of Aluminium= 3+
Charge of Oxide = 2-
Symbol Al O
Charge 3+ 2-
Fo...
Symbol Ca O
Charge 2+ 2-
Formula : Ca2o2
Symbol / formula Cu No3
Charge 2+ 1-
Formula :Cu(No3)2
Name of element = Sulphur
Symbol = S
Atomic number =16
Number of protons= 16
Number of neutrons = 16
Number of electrons =...
class IX science book
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Formula of compounds chemistry

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Formula of compounds chemistry

  1. 1. Class – IX Subject – chemistry Topic – Formula of compounds
  2. 2. Name of element = Oxygen Name of element=hydrogen Valency of hydrogen = 1 Valency of Oxygen = 2
  3. 3. Name of element = sodium Name of element=chloride Valency of sodium= 1 Valency of chloride = 1 Symbol Na Cl Valency 1 1
  4. 4. Name of element = Aluminium Name of element=Oxide Charge of Aluminium= 3+ Charge of Oxide = 2- Symbol Al O Charge 3+ 2- Formula : Al2o3
  5. 5. Symbol Ca O Charge 2+ 2- Formula : Ca2o2
  6. 6. Symbol / formula Cu No3 Charge 2+ 1- Formula :Cu(No3)2
  7. 7. Name of element = Sulphur Symbol = S Atomic number =16 Number of protons= 16 Number of neutrons = 16 Number of electrons = 16 Distribution of electron = K L M N 2 8 7 -
  8. 8. class IX science book

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