Atomic Theory History

Front

Who was the first person credited with studying atomic theory?

Back

Democritus

Front

Earth, Air, Fire, and Water were the fundamental elements proposed by ___?

Back

Aristotle

Front

Which Scientist said, matter made of atoms that can not be created or destroyed? Options: Democritus, Aristotle, John Dalton, JJ. Thompson

Back

John Dalton

Tags

NGSS.MS-PS1-5

Front

Order the scientists related to atomic theory from earliest to most recent:

• Ernest Rutherford
• JJ Thomson
• John Dalton
• Democritus

Back

Democritus, John Dalton, JJ Thomson, Ernest Rutherford.

Front

Who proposed that the atom consists mostly of empty space with a nucleus at the centre?

Back

Rutherford

Front

What subatomic particles did James Chadwick discover?

Back

neutrons

Tags

NGSS.HS-PS1-8

Front

Who's atomic model is this?

Back

Thomson

Tags

NGSS.MS-PS1-1

Front

Which Scientist created this model?
Options: Democritus, Chadwick, Bohr, Rutherford

Back

Bohr

Front

What is the smallest particle of an element that retains the chemical properties of that element?

Back

atom