Challenge 1
T. Trimpe 2008 http://sciencespot.net/
Use a periodic table and your knowledge of the
element families to identify each element by name.
1. I am a member of the Carbon family with 14 electrons.
2. I am a member of the Alkaline Earth family and would
have 6 energy levels.
3. I am a halide that is a liquid at room temperature.
4. I am a transition metal with 79 protons.
5. I am a member of the Alkali Metal family with 20
neutrons.
The answers are …
1. I am a member of the Carbon family with 14
electrons.
Silicon
2. I am a member of the Alkaline Earth family
and would have 6 energy levels.
Barium
3. I am a halide that is a liquid at room
temperature.
Bromine
4. I am a transition metal with 79 protons.
Gold
5. I am a member of the Alkali Metal family with
20 neutrons.
Potassium
Challenge 2
T. Trimpe 2008 http://sciencespot.net/
Use a periodic table and your knowledge of the
element families to identify each element by name.
1. I am a member of the Boron family and am a liquid at
room temperature.
2. I am a member of the Alkaline Earth family and would
have 4 energy levels.
3. I am a member of the Nitrogen family that is gas at
room temperature.
4. I am a transition metal with 110 neutrons.
5. I am a member of the Oxygen family with 16 protons
and 16 neutrons.
The answers are …
1. I am a member of the Boron family and am
a liquid at room temperature.
Gallium
2. I am a member of the Alkaline Earth family
and would have 4 energy levels.
Calcium
3. I am a member of the Nitrogen family that
is gas at room temperature.
Nitrogen
4. I am a transition metal with 110 neutrons.
Tungsten
5. I am a member of the Oxygen family with
16 protons and 16 neutrons.
Sulfur
Challenge 3
T. Trimpe 2008 http://sciencespot.net/
Use a periodic table and your knowledge of the
element families to identify each element by name.
1. I am a Noble Gas that is found in the 6th period.
2. I am a member of the Alkaline Earth family and have 88
electrons.
3. I am a transition metal that is a liquid at room
temperature.
4. I am a member of the Carbon family that is found in the
5th period.
5. I am a Halide that is a gas at room temperature and have
3 energy levels.
The answers are …
1. I am a Noble Gas that is found in the 6th
period.
Radon
2. I am a member of the Alkaline Earth family
and have 88 electrons.
Radium
3. I am a transition metal that is a liquid at
room temperature.
Mercury
4. I am a member of the Carbon family that is
found in the 5th period.
5. I am a Halide that is a gas at room
temperature and have 3 energy levels.
Tin
Chlorine
Challenge 4
T. Trimpe 2008 http://sciencespot.net/
Use your knowledge of the relationships in the
periodic table to answer each question.
A
B
C
1. If Element B has 14 protons, how many
would an atom of Element C have?
D
E
F
G
H
I
2. If Element G has 3 valance electrons,
how many would Element A have?
Mystery Table
3. If Element I has 3 energy levels, how
many would Element F have?
4. If Element D has 22 electrons, how
many would Element F have?
5. If Element E has 4 valence electrons,
how many would Element I have?
The answers are …
A
D
G
B
E
H
C
F
I
1. If Element B has 14 protons, how many
would an atom of Element C have?
15
2. If Element G has 3 valance electrons, how
many would Element A have?
3
3. If Element I has 3 energy levels, how many
would Element F have?
2
4. If Element D has 22 electrons, how many
would Element F have?
26
5. If Element E has 4 valence electrons, how
many would Element I have?
5
Challenge 5
T. Trimpe 2008 http://sciencespot.net/
Use your knowledge of the relationships in the
periodic table to answer each question.
A
B
C
1. If Element D has 14 protons, how many
would an atom of Element F have?
D
E
F
G
H
I
2. If Element H has 3 valance electrons,
how many would Element C have?
Mystery Table
3. If Element I has 4 energy levels, how
many would Element B have?
4. If Element C has 22 electrons, how
many would Element A have?
5. If Element F has 4 valence electrons,
how many would Element G have?
The answers are …
A
B
C
D
E
F
G
H
I
1. If Element D has 14 protons, how many
would an atom of Element F have?
16
2. If Element H has 3 valance electrons,
how many would Element C have?
4
3. If Element I has 4 energy levels, how
many would Element B have?
2
4. If Element C has 22 electrons, how
many would Element A have?
24
5. If Element C has 4 valence electrons,
how many would Element G have?
2
Which situation provides the best
evidence that a chemical reaction is
taking place?
A.
B.
C.
D.
A metal strip bends when heated.
A solution freezes in the freezer.
Two solutions mixed in a beaker produce
a solid.
A chemical completely dissolves in
water.