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History of Atom

Total questions: 11

Worksheet time: 6mins

Name
Class
Date
1.

A small positive core with small negative particles circling it.

a)

Description of Bohr Model

b)

Description of Rutherford Model

c)

Description of Thompson Model

d)

Description of Modern Model

2.

Experiment that showed atoms contained particles that were negatively charged.

a)

Cathode Ray

b)

Gold Foil

c)

Oil Drop

d)

Particle accelerator

3.

Proposed that electrons move around the nucleus in specific layers, or shells.

a)

Bohr

b)

Rutherford

c)

Chadwick

d)

Thomson

4.
Who discovered the electron?
a)
Niels Bohr
b)
Democritus
c)
Joseph Thomson
d)
John Dalton
5.
Who performed the Gold Foil Experiment?
a)
J. J. Thomson
b)
Ernest Rutherford
c)
Neils Bohr
d)
John Dalton
6.
Which model is this?
a)
Thomson Model
b)
Cloud Model
c)
Bohr Model
d)
Rutherford Model
7.

What does Heisenberg's Uncertainty Principle state?

a)
It is impossible to simultaneously know both the exact position and exact momentum of a particle.
b)

It describes that electrons only act like a particle

c)
The principle states that energy and time cannot be known simultaneously.
d)

It IS possible to know both the exact position and exact momentum of a particle.

8.

Which experiment led to the discovery of the nucleus?

a)

Gold Foil Experiment

b)

Cathode Ray Experiment

c)

Oil Drop Experiment

d)

Double-slit Experiment

9.

Who proposed the quantum mechanical model of the atom?

a)

Erwin Schrödinger

b)

Albert Einstein

c)

Niels Bohr

d)

James Chadwick

10.

Who proposed the plum pudding model of the atom?

a)

Ernest Rutherford

b)

Niels Bohr

c)

J. J. Thomson

d)

James Chadwick

11.

Which experiment demonstrated the wave nature of electrons?

a)

Double-slit Experiment

b)

Gold Foil Experiment

c)

Cathode Ray Experiment

d)

Oil Drop Experiment