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Atom Model History

Total questions: 15

Worksheet time: 8mins

Name
Class
Date
1.

Who proposed the 'plum pudding' model of the atom?

a)

o Dalton

b)

o Thomson

c)

o Rutherford

d)

o Bohr

2.

Who first came up with the idea of an atom and called them "atomos"?

a)

o Democritus

b)

o Thomson

c)

o Rutherford

d)

o Bohr

3.

Who performed the famous 'gold foil experiment'?

a)

o Dalton

b)

o Thomson

c)

o Rutherford

d)

o Bohr

4.

Who first discovered that electrons orbit the nucleus in orbits?

a)

o Dalton

b)

o Thomson

c)

o Rutherford

d)

o Bohr

5.

Which of the four Physicists was first to work with cathode rays?

a)

o Dalton

b)

o Thomson

c)

o Rutherford

d)

o Bohr

6.

Who, in 1897, discovered the electron?

a)

Dalton

b)

Rutherford

c)

Bohr

d)

Thompson

7.

Who discovered that atoms have a nucleus?

a)

Dalton

b)

Thompson

c)

Rutherford

d)

Bohr

8.

Who's theory can be linked to the law of conservation of mass?

a)

Dalton

b)

Thompson

c)

Rutherford

d)

Bohr

9.

Where are the protons located?

a)

outside the nucleus

b)

inside the nucleus

c)

in the orbitals

d)

within energy levels

10.

Where are the electrons located?

a)

o outside the nucleus

b)

o inside the nucleus

c)

o in the middle of the atom

d)

o in areas that contribute to the atom's mass

11.

What is the charge of a proton?

a)

+

b)

-

c)

neutral

d)

both + & -

12.

What is the charge of a electron?

a)

+

b)

-

c)

neutral

d)

both + & -

13.

What is the charge of a neutron?

a)

+

b)

-

c)

neutral

d)

both + & -

14.

Which model of the atom was created directly after the cathode ray tube experiment?

a)

plum pudding

b)

quantum mechanical model

c)

atomic model

d)

bohr model

15.

Which experiment discovered the nucleus of the atom?

a)

cathode ray tube

b)

gold foil experiment

c)

heisenberg's uncertainty principle

d)

flame test experiment