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Lesson 1 Quiz 8th grade Atoms

Total questions: 25

Worksheet time: 13mins

Name
Class
Date
1.
Who was the first person to study atomic theory?
a)
Dalton
b)
Democritus
c)
Chadwick
d)
Miller
2.
True or False? John Dalton believed that moving electrons exist in electron clouds around the nucleus. 
a)
False
b)
True 
3.
What was the name of J.J Thomsons' model of atomic structure. 
a)
Electron Cloud Model 
b)
Electron Sea Model
c)
Plum Pudding Model 
d)
Bohr Model
4.
What does the Bohr model suggest?
a)
Atoms are small, hard, indivisible objects. 
b)
That protons in the nucleus are attracted to electrons in the electron clouds. 
c)
That electrons travel around the nucleus of an atom in orbits or definite paths.
5.
Was John Daltons theory earlier than Niels Bohr?
a)
No
b)
Yes
6.
Who proposed that the atom consists mostly of empty space?
a)
Bohr
b)
Dalton
c)
Rutherford
d)
Chadwick
7.
The word 'atomos' termed by Democritus means:
a)
Indivisible
b)
Unconscious
c)
Blue
d)
Nuclear powered
8.
Earth, Air, Fire, and Water were the fundamental elements propose by ___.
a)
Aristotle
b)
Democritus
c)
Plato
d)
Galileo
9.
Developed the “chocolate chip cookie” model of the atom
a)
James Chadwick
b)
Niels Bohr
c)
Schrodinger & Heisenberg
d)
J.J. Thomson
10.
Developed the “billiard ball” model of the atom
a)
Niels Bohr
b)
John Dalton
c)
J.J. Thomson
d)
Ernest Rutherford
11.
Developed the very first atomic theory
a)
Ernest Rutherford
b)
Schrodinger & Heisenberg
c)
Niels Bohr
d)
John Dalton
12.
Discovered the electron
a)
Bohr
b)
Dalton
c)
Rutherford
d)
Thomson
13.

First person to propose the concept of an atom

a)

Rutherford

b)

Democritus

c)

Dalton

d)

Bohr

14.

Which of the following shows the correct order of Atomic Theory Timeline

a)

Rutherford, Bohr, Dalton, Democritus, Thomson

b)

Bohr, Democritus, Thomson, Rutherford, Dalton

c)

Dalton, Thomson, Rutherford, Bohr, Democritus

d)

Democritus, Dalton, Thomson, Rutherford, Bohr

15.

Which Scientist created this model

a)

Democritus

b)

Chadwick

c)

Bohr

d)

Rutherford

16.

What subatomic particles are in the nucleus?

a)

Protons

b)

Neutrons

c)

Electrons

d)

Photons

17.

What subatomic particle has a negative charge?

a)

Electrons

b)

Neutrons

c)

Protons

d)

Nucleus

18.

Which subatomic particle has the least mass?

a)

Electron

b)

Neutron

c)

Proton

19.

Which subatomic particle has no charge?

a)

Electron

b)

Neutron

c)

Proton

20.

Neutrons have the same mass as which subatomic particle?

a)

Electrons

b)

Protons

21.

Which part of the atom has the most mass?

a)

The electrons

b)

In the nucleus

c)

It is evenly spread out

d)

On the outside

22.

Atomic number is a measure of the...

a)

Number of electrons

b)

Number of neutrons

c)

Number of protons

d)

Number of protons and neutrons

23.

To have a charge of zero, what two particles must be balanced in an atom?

a)

Protons and Electrons

b)

Protons and neutrons

c)

Electrons and neutrons

24.

What subatomic particle is different between isotopes?

a)

Electrons

b)

Protons

c)

Neutrons

25.

Mass number is a measure of an atom's

a)

Electrons and protons

b)

Electrons and neutrons

c)

Neutrons and protons

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