WorksheetsReading the period table
Total questions: 16
Worksheet time: 10mins
Name
Class
Date
1.
Atomic Mass equals the combined number of
a)
Protons and Electrons
b)
Electrons and Neutrons
c)
Protons and Neutrons
2.
Each proton will attract one electron because...
a)
Protons are positive, electrons a negative
b)
protons are positive and electrons are positive
c)
both electrons and protons are negative
d)
neutrons have no charge so don't have any effect
3.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
4.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
5.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
6.
an atom with atomic number 6 would have how many protons
a)
6
b)
12
c)
3
d)
cannot be determined
7.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
8.
Who atomic model said electrons orbit the atom like planets orbit the sun
a)
Einstein
b)
Thomson
c)
Bohr
d)
Dalton
9.
Which of these is the electron?
a)
A
b)
B
c)
C
d)
D
10.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
11.
How many Electrons
a)
2.5
b)
5
c)
6
d)
10.81
12.
Find a periodic table. Look online or in your agenda. How many neutrons does Aluminum have?
a)
13
b)
27
c)
14
d)
40
13.
On a periodic table, find Na (sodium). How many neutrons does it have?
a)
11
b)
22
c)
23
d)
12
14.
Argon has how many neutrons?
a)
18
b)
39
c)
40
d)
22
15.
Carbon has 6 protons. Carbon has an atomic mass of 12. How many neutrons does Carbon have?
a)
12
b)
0
c)
2
d)
6
16.
How many neutrons does lead have?
a)
82
b)
207
c)
207 - 82 =125
100 %
