Chemistry
Quick practice
Question 1 of 5
Electron was discovered by
A
Thomson
B
Goldstein
C
Chadwik
D
Dalton
Concepts
Basics of Chemistry
Matter & Its Composition
Element, Mixture and Compounds
Atomic Structure
Elements Classification
Chemical Bonding and Reactions
Acids, Bases and Salts
Metals and Non-metals
Organic Chemistry
Environmental Chemistry
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