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WorksheetsAtomic Theory Scientists
Total questions: 20
Worksheet time: 53mins
Name
Class
Date
1.
Which scientist developed the atomic theory?
a)
JJ Thomson
b)
Ernest Rutherford
c)
John Dalton
d)
James Chadwick
2.
JJ Thomson's theory was nicknamed _______.
a)
Billiard Ball Theory
b)
Solar System Theory
c)
Electron Cloud
d)
Plum Pudding
3.
The Billiard Ball is the nickname for ________ theory.
a)
Dalton
b)
Neils Bohr
c)
JJ Thomson
d)
Ernest Rutherford
4.
Electron cloud is based on
a)
Quantum Mechanics
b)
Gold Foil Experiment
c)
Matter is made up of small particles called atoms
d)
Nuclear Theory
5.
Who discovered the proton?
a)
Thomson
b)
Dalton
c)
Bohr
d)
Rutherford
6.
He developed the planetary model of the atom.
a)
Rutherford
b)
Bohr
c)
Chadwick
d)
Dalton
7.
James Chadwick discovered the ________.
a)
proton
b)
neutron
c)
electron
d)
nucleus
8.
Who believed that all matter is made up of small particles called atoms?
a)
Dalton
b)
Rutherford
c)
Bohr
d)
Chadwick
9.
What did Thomson discover?
a)
electron
b)
proton
c)
neutron
d)
electron cloud
10.
What does this image represent?
a)
Billiard Ball Model
b)
Plum Pudding
c)
Gold Foil
d)
Solar System Model
11.
What does this image does this represent?
a)
Plum Pudding
b)
Billiard Ball
c)
Solar System
d)
Electron Cloud
12.
What does this image represent
a)
Billiard Ball
b)
Solar System
c)
Plum Pudding
d)
Electron Cloud
13.
Which scientist developed the Electron Cloud?
a)
Bohr
b)
Chadwick
c)
Rutherford
d)
Dalton
14.
This scientist believed that electrons orbit the nucleus.
a)
Dalton
b)
Bohr
c)
Rutherford
d)
Chadwick
15.
The Gold Foil experiment was done by __________.
a)
Chadwick
b)
Bohr
c)
Rutherford
d)
Thomson
16.
What scientist first developed 4 rules for atomic theory, and helped kick start modern chemistry?
a)
Thomson
b)
Rutherford
c)
Dalton
d)
Democritus
17.
Electron cloud is based on
a)
Quantum Mechanics
b)
Gold Foil Experiment
c)
Matter is made up of small particles called atoms
d)
Nuclear Theory
18.
He developed the planetary model of the atom.
a)
Rutherford
b)
Bohr
c)
Chadwick
d)
Dalton
19.
This scientist performed the Cathode Ray Tube experiment and proposed the Plum Pudding Model of the atom
a)
Dalton
b)
Chadwick
c)
Thomson
d)
Democritus
20.
His model of the atom is referred to as the Nuclear atom.
a)
Chadwick
b)
Dalton
c)
Rutherford
d)
Robert Millikan
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