Worksheets4.3 review test 3
Total questions: 12
Worksheet time: 7mins
Name
Class
Date
1.
What scientist is best known for his "Plum Pudding" model of the atom?
a)
J.J. Thomson
b)
Ernest Rutherford
c)
John Dalton
d)
Democritus
2.
The first person to propose a theory about an atom called the Atomos Theory was
a)
Democritus
b)
Rutherford
c)
Dalton
d)
Aristotle
3.
Who discovered the nucleus using the gold foil experiment?
a)
Democritus
b)
Robert Millikan
c)
James Chadwick
d)
Ernest Rutherford
4.
His atomic model was depicted similar to a planetary/solar system
a)
Niels Bohr
b)
Joseph Thomson
c)
Ernest Rutherford
d)
Democritus
5.
What is atomic number?
a)
Number of protons in an atoms
b)
Number of neutrons in an atom
c)
Mass of an atom
d)
Charge on an atom
6.
What electrical charge does a proton have?
a)
+1
b)
0
c)
-1
d)
+2
7.
What mass does a neutron have?
a)
1
b)
0
c)
-1
d)
+2
8.
How many protons does an aluminium atom have? (Use the image to help you)
a)
27
b)
14
c)
40
d)
13
9.
Complete the missing label on the diagram.
a)
Neutron
b)
Centre
c)
Nucleus
d)
Sub atomic particle
10.
Which particle is negatively charged?
a)
proton
b)
atom
c)
neutron
d)
electron
11.
What is the atomic number of this atom?
a)
1
b)
3
c)
4
d)
7
12.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
100 %
