Name _______________________________ Date __________________
SOL 6.5
1. Elements are the simplest type of
pure substance. How many
different types of atoms can be
found in an element?
A
B
C
D
3. The way people have thought
about and pictured atoms has
changed as we have learned more
about them. The first model,
Dalton’s, has been called the
“billiard ball” model. The most
modern model has been called
the “electron cloud” model.
Between these two, the physicist,
J. J. Thompson, developed what
was called the “blueberry muffin”
or “plum pudding” atomic model.
Which one of the following is a
picture of the “blueberry muffin /
plum pudding” model?
one
two
three
as many as the electrons in all
elements
2. Which of the diagrams below best
shows the arrangement of
subatomic particles in a typical
atom (P = proton, E = electron, N
= neutron)?
A
A
N E
E N
P
P
B
B
E
P N
N P
E
C
C
E
N
P
P
N
E
D
D
N
P E
E P
N
____________________________________________________________________________________________________
Copyright©1999,2000 S.S. Flanagan & D.E. Mott
Do not reproduce without permission. 07-15-00
15
Name _______________________________ Date __________________
SOL 6.5
4. The smallest part of a single
element that has all the properties
of that element is an:
A
B
C
D
8. The number of protons in the
nucleus of an atom is called the:
A
B
C
D
electron.
atom.
isotope.
alloy.
element number.
atomic number.
mass number.
atomic weight.
9. A substance that contains only
one kind of atom is called a(an):
5. An atomic nucleus can consist of
which particles?
A
B
C
D
A
B
C
D
protons and neutrons
protons and electrons
neutrons and electrons
protons, neutrons, and electrons
compound.
molecule.
element.
nucleus.
10. The basic building block of matter
is:
6. Democritus concluded that
matter:
A
B
C
D
A could be divided into smaller and
smaller pieces forever.
B could be divided until it became
indivisible atoms.
C consisted on protons, neutrons, and
electrons.
D was positively charged.
11. What is the electrical charge on an
electron?
A
B
C
D
7. The small, heavy center of the
atom is called a/an:
A
B
C
D
compound.
atom.
element.
mixture.
neutron.
proton.
cortex.
nucleus.
+
++
-+
12. What is the electrical charge on a
proton?
A
B
C
D
+
++
-+
____________________________________________________________________________________________________
Copyright©1999,2000 S.S. Flanagan & D.E. Mott
Do not reproduce without permission. 07-15-00
16