WorksheetsAtoms and Elements
Total questions: 18
Worksheet time: 13mins
Name
Class
Date
1.
An example of matter made of only one element is
a)
water
b)
gold bar
c)
light bulb
d)
salad mixture
2.
The chemical symbol for Helium is
a)
H
b)
Hg
c)
He
d)
O
3.
Sodium is an ingredient in salt. The chemical symbol for salt is
a)
N
b)
Na
c)
Mg
d)
S
4.
The chemical symbol for Oxygen is
a)
Ox
b)
Og
c)
O
d)
On
5.
The chemical symbol for Silicon is
a)
S
b)
Sn
c)
Sc
d)
Si
6.
The chemical symbol for Carbon is
a)
C
b)
Cb
c)
Ca
d)
Cn
7.
The two most common elements found in the oceans are. Remember oceans are made up of water.
a)
Sodium and Nitrogen
b)
Oxygen and Aluminum
c)
Iron and Carbon
d)
Oxygen and Hydrogen
8.
What is the most abundant element found in the earth's atmosphere?
a)
Oxygen
b)
Sulfur
c)
Nitrogen
d)
Argon
9.
Chemical symbols for two elements that occur in the earth's atmosphere are
a)
Si and Al
b)
Ar and Al
c)
O and N
d)
H and N
10.
Elements are represented by chemical symbol. Symbols are written with
a)
all lower case letters
b)
all capital letters
c)
always only one letter
d)
At least and ONLY one capital letter
11.
The smallest part of an element is
a)
proton
b)
atom
c)
compound
d)
mixture
12.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
13.
The positive particles of an atom are
a)
electrons
b)
positrons
c)
neutrons
d)
protons
14.
the central region of an atom where its neutrons and protons are is its
a)
nucleus
b)
electron cloud
c)
core
d)
center
15.
True or False? Neutrons have a negative charge
a)
True
b)
False
16.
Particles in an atom that are neutral and have no charge are
a)
negatrons
b)
electrons
c)
neutrons
d)
protons
17.
True or False? Neutrons have a negative charge
a)
True
b)
False
18.
A particle that moves around the nucleus is a(n)...
a)
Proton
b)
Neutron
c)
Electron
d)
Quark
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