atomic theory

Front

Who was the first person to study atomic theory?

Back

Democritus

Front

True or False? John Dalton believed that moving electrons exist in electron clouds around the nucleus.

Back

False

Front

What was the name of J.J Thomson's model of atomic structure? Options: Electron Cloud Model, Electron Sea Model, Plum Pudding Model, Bohr Model

Back

Plum Pudding Model

Front

What was James Chadwick's most notable discovery?

Back

The nucleus contains neutrons.

Front

Was John Dalton's theory earlier than Niels Bohr?

Back

Yes

Front

Who proposed that the atom consists mostly of empty space? Options: Bohr, Dalton, Rutherford, Chadwick

Back

Rutherford

Front

Which name is incorrect? Options: Ernest Rutherford, Niels Bohr, James Dolton , J.J Thomson

Back

James Dolton 

Front

Who was the first contributor to the atomic theory?

Back

Democritus

Front

What is Neils Bohr's contribution to the atomic theory?

Back

Created a model of the atom with electrons moving around the nucleus in fixed orbits.

Front

Which model of the atom proposed that atoms were positive spheres with negative electrons in them? Options: Heliocentric Model, Solid Sphere Model, Plum Pudding Model, Planetary Model

Back

Plum Pudding Model