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CHEMISTRY - Basic



1. The term atom was introduced by -  Ostward

2. The first atomic theory was postulated by - John Dalton

3. The term molecule was introduced by - Avogadro

4. Wave mechanical model of atom was introduced by - Max Plank

5. The nuclear model of atom was introduced by - J.J Thomson

6. The smallest atom - Helium

7. Neutron was discovered by - James Chadwick

8. The lightest metal - Lithium

9. The acid present in vinegar is - Acetic acid

10. Tea contain - Tannic acid
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