History Of The Atom

Question 1

Demokritos

Answer 1

Atoms can’t be split

Question 2

John Dalton

Answer 2

Atoms are tiny particles that can’t be split. They make up elements

Question 3

JJ Thompson

Answer 3

Atoms can be split. They contain a nucleus and electrons (plum pudding)

Question 4

Rutherford

Answer 4

Mass is in nucleus. Electrons orbit on shells

Question 5

Chadwick

Answer 5

Neutrons exist

Question 6

Bohr

Answer 6

Electrons can only move along specific shells