Periodic Table Practice Worksheet
Name
1. What is a group (or family)?
What is a period?
Columns
KEY
Rows
2. How can you determine the number of electrons in an element’s outer energy level by the group it’s in?
Each column has the same number of valence electrons.
3. What is the octet rule?
Elements want 8 electrons in their outer most shell. (called valence electrons)
4. What is the common name for group 18?
The Noble Gases
Why do the elements of this group usually not form ions?
Elements in this group already have 8 valence electrons so they do not need to lose or gain
electrons to form ions.
5. Complete the following table.
Group
Common Name
Number of Valence Electrons
1
The Alkali Metals
1
2
The Alkaline Earth Metals
2
13 / 3A
--------
3
16 / 6A
--------
6
17 / 7A
The Halogens
7
6. Name all the elements called metalloids.
Boron, Silicon, Germanium, Arsenic, Antimony, Tellurium, Polonium, and Astatine.
Periodic Table Scavenger Hunt
Ba
7. Which element is a metal: Ba (56) or At (85)?
4
8. Which period is Ca (20) in?
15
9. What is the number of the group N (7) is in?
Rb
10. Which element is an alkali metal: Rb (37) or Al (13)?
Cl
11. Which element is a halogen: Na (11) or Cl (17)?
Ne
12. Which element is a noble gas: Ne (10) or Br (35) or O (8)?
8
13. How many is an octet of electrons?
P
14. Which element has 5 valence electrons? B (5) or P (15)?
Characteristics of Elements
Name
Use a periodic table to help you answer the following questions.
15. a. In which group number is bromine found?
a.
7
b. What is the common name of this chemical family?
b.
The Halogens
c. How many valence electrons does it have?
c.
7
d. Is it a metal, a nonmetal, or a metalloid?
d.
Non-Metal
16. a. In which group number is argon found?
a.
8
b. What is the common name of this chemical family?
b.
The Noble Gases
c. How many valence electrons does it have?
c.
8
d. Is it a metal, a nonmetal, or a metalloid?
d.
Non-Metal
17. a. In which group number is potassium found?
a.
1
b. What is the common name of this chemical family?
b.
The Alkali Metals
c. How many valence electrons does it have?
c.
1
d. Is it a metal, a nonmetal, or a metalloid?
d.
Metal