WorksheetsU2 Parts of an Atom
Total questions: 13
Worksheet time: 7mins
Name
Class
Date
1.
The atomic number always tells you
a)
the number of protons
b)
the number of electrons
c)
the number of neutrons
d)
the mass of an atom
2.
Atomic Mass is composed of
a)
protons and neutrons
b)
protons and electrons
c)
neutrons and electrons
3.
The two particles that affect the charge of an atom are:
a)
protons and neutrons
b)
protons and electrons
c)
neutrons and electrons
4.
The periodic table is arranged by
a)
atomic number
b)
atomic mass
c)
alphabetically
5.
If the number of electrons is changed, the atom is called
a)
an ion
b)
an isotope
c)
the name is the same
d)
you cannot change the number of electrons
6.
If the number of protons is changed, the atom is called
a)
an ion
b)
an isotope
c)
the name is the same
d)
you cannot change the number of protons
7.
If the number of neutrons is changed, the atom is called
a)
an ion
b)
an isotope
c)
the name is the same
d)
you cannot change the number of neutrons
8.
A cation is an atom that has
a)
gained protons
b)
gained electrons
c)
lost electrons
d)
lost neutrons
9.
An anion is an atom that has
a)
lost protons
b)
gained electrons
c)
lost electrons
d)
gained neutrons
10.
An isotope is an atom with
a)
the same number of protons and a different number of neutrons
b)
the same number of neutrons and a different number of protons
c)
the same number of protons and a different number of electrons
d)
the same number of neutrons and a different number of electrons
11.
What atom has an atomic number of 4?
a)
Helium
b)
Lithium
c)
Potassium
d)
Beryllium
12.
What element has more protons than Neon?
a)
Helium
b)
Argon
c)
fluorine
d)
nitrogen
13.
Which element has the greatest atomic mass?
a)
iron
b)
radon
c)
boron
d)
beryllium
100 %
