SSC SSC CPO Mock Test Series 2025 (Tier I & II) (DP SI & CAPF) General Science Biology Invention and Discoveries
In the early 1800s, who discovered that each chemical element is made up of a unique type of atom and that atoms differ by their mass?
1
Antoine Lavoisier
2
John Dalton
3
Amedeo Avogadro
4
Robert Boyle