How to Read the
Periodic Table!
How to Identify things on
a periodic table
Atomic Number
indicates the # of
_______
Chemical Symbol
Element Name
Atomic Mass
indicates the # of
_______ & _______
How to Read the Periodic Table:
-Broken into 18 groups & 7 periods.
*REMEMBER: groups- vertical periods- horizontal
-Groups are related by chemical and physical
properties, whereas periods are not.
*Example: Group 17 (Halogens)
In group 17, the elements show
many similarities.
Members of the group can be
similar, but not identical.
How to Read the Periodic Table by Group/
Period (Open Textbooks to p. 20):
-So if I were to say find the element at group 11, period
5...
Find your key! This will help you determine the element's
details. :)
NOTE: not every periodic table is the same! Make sure you
identify the key.
How to Read the Periodic Table by Group/
Period (Open Textbooks to p. 20):
Let's Try a Few Together! :)
1. Find the element at group 14, period 2. CARBON
2. Find the element at group 17, period 5. IODINE
3. In what group/period would we find Lithium?
Group 1, Period 2.
4. In what group/period would we find Neptunium?
Group 3, Period 7
5. Find the element at group 8, period 4. IRON
How to Read the Periodic Table by Group/
Period (Open Textbooks to p. 20):
Let's Try a Few Together! :)
1. Find the element at group 14, period 2. What is the atomic number of
this element? Carbon- 6
2. Find the element at group 17, period 5. What is the chemical symbol
of this element? Iodine- I
3. Find Lithium on the periodic table. What state of matter is it at room
temperature? Solid
4. Find the element in Group 3 Period 7. Is it a metal, non metal, or
metalloid? Metal
5. Find the element at group 8, period 4. What is its atomic mass?
Iron- 55.845