Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Evolution of the Atom

Total questions: 20

Worksheet time: 2hrs 9mins

Name
Class
Date
1.

Which one of the following discoveries came first?

a)

electrons

b)

neutrons

c)

quarks

d)

atoms

2.

Which scientist discovered the electrons?

a)

Dalton

b)

Thomson

c)

Atristotle

d)

Bohr

3.

Rutherford and his students did experiments that showed

a)

quark

b)

nucleus

c)

proton

d)

electron

4.

Bohr discovered that electrons are located in

a)

the nucleus

b)

inside protons

c)

electron cloud

d)

circular orbits around the nucleus

5.

What is a particle with one negative charge called?

a)

electron

b)

proton

c)

quark

d)

neutron

6.

What is a particle with one positive charge called?

a)

proton

b)

electron

c)

neutron

d)

quark

7.

What is the neutral particle found in the nucleus called?

a)

proton

b)

neutron

c)

electron

d)

quark

8.

What is the center of an atom called?

a)

nucleus

b)

electron cloud

c)

proton center

d)

photon center

9.
Who was the first person to come up with the Atomic Theory?
a)
John Dalton
b)
Democritus
c)
Ernest Rutherford
d)
Niels Bohr
10.
Most of the alpha particles went straight through the gold foil.  This suggested that....
a)
There is no interference between alpha and gold.
b)
Most of the atom is made up of empty space.
c)
The alpha particles were very tiny.
d)
None of the above
11.
Some of the alpha particles fired at the gold foil were deflected at angles.  This was due to...
a)
reflection of the alpha source when it it the fluorescent screen.
b)
The alpha particles hitting the gold nucleus.
c)
Repulsion forces between the positively charged nucleus and the positively charged alpha particles. 
d)
A mis-firing of the alpha source
12.
Which scientist came up with the Plum pudding theory?
a)
Hantaro Nagaoka
b)
Ernest Rutherfud
c)
J.J Thomson
d)
Charles Darwin
13.
What did the Plum pudding model suggest about the structure of atoms?
a)
That neutrons and electrons were arranged in a sphere.
b)
 that is was a sphere of positive charge throughout which the electrons were distributed
c)
That an atom was filled with neutrons, protons and a sphere of negative charge. 
d)
That neutrons, protons and electrons were distributed throughout a sphere.
14.
Where are the electrons found in an atom?
a)
In specific orbitals, like planets around the sun
b)
In a cloud around the nucleus
c)
in the nucleus
d)
in a blob of positive matter
15.
How did Rutherford discover the proton?
a)
Cathode tube ray experiment
b)
Gold Foil Experiment
c)
Planetary Model
d)
Plum Pudding Model
16.
Electrons can be found in
a)
The protons
b)
The nucleus
c)
Electron Clouds
d)
exact locations
17.
Rutherford’s experiment determined that the nucleus of an atom is tiny, dense and  ______ charged. 
a)
positively
b)
negatively
c)
neutrally
18.
Rutherford concluded that atoms were _________. 
a)
Mainly empty space 
b)
Made of protons, neutrons, and electrons
c)
Uniform throughout
d)
Dense positively charged particles
19.
Who believed the atom was a solid sphere?
a)
JJ Thompson
b)
Rutherford and Dalton
c)
Rutherford
d)
Democritus and Dalton 
20.

What causes bright lines on an emission spectrum?

a)

electrons jumping to higher energy levels when absorbing light

b)

electrons falling to lower energy levels, releasing light

c)

protons jumping to higher energy levels when absorbing light

d)

protons falling to lower energy levels, releasing light

Similar Resources on Wayground

Chapter 5 Chemical Bond (Set 2)

20 questions

Chapter 5 Chemical Bond (Set 2)

quiz

Worksheet

•

9th Grade

Week 6: Periodic Table

17 questions

Week 6: Periodic Table

quiz

Worksheet

•

12th Grade

Solutions

25 questions

Solutions

quiz

Worksheet

•

10th - 11th Grade

Classification by structure

15 questions

Classification by structure

quiz

Worksheet

•

11th Grade

Ch.3 chem Q=mcT review worksheet

15 questions

Ch.3 chem Q=mcT review worksheet

quiz

Worksheet

•

10th - 12th Grade

Topic 6- Periodic Table MCQ

20 questions

Topic 6- Periodic Table MCQ

quiz

Worksheet

•

9th Grade

PERIODIC TABLE: GROUP 18 AND 1

16 questions

PERIODIC TABLE: GROUP 18 AND 1

quiz

Worksheet

•

9th - 12th Grade

Narayana eTechno school JEE revision

15 questions

Narayana eTechno school JEE revision

quiz

Worksheet

•

10th Grade