Chemistry
- 25 June 2020
  1. Fundamentals of Chemistry [ilmkidunya]
    1. Introduction to Chemistry [ilmkidunya]
    2. Branches of chemistry [ilmkidunya]
    3. Chemical Species [ilmkidunya]
  2. Structure of atom 
  3. Periodic Table and Periodicity of Properties
  4. Structure of Molecules
  5. Physical states of matter
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