Scientists

John Dalton

Sep 6, 1766

Dalton was a important scientist born in 1766 who propose that all matter is made of atoms and that these atoms cannot be broken into smaller particles.

Joseph John Thomson

Dec 18, 1856

Thomson was a scinetist born in 1856 who designed the plum pudding model (the atom was not the smallest particle but in fact contained small negative particles called electrons. )