Practice reading the periodic table by identifying groups, periods, element locations, and patterns in rows and columns.
Use a periodic table to answer each question. Read each problem carefully and show your work or reasoning in the space provided.
Identifying element locations using rows and columns
Chemistry - Grade 6-8
- 1
On the periodic table, what is a period, and which direction does it run?
- 2
On the periodic table, what is a group, and which direction does it run?
- 3
Find oxygen, O, on the periodic table. What period is oxygen in, and what group is oxygen in?
- 4
Find sodium, Na, on the periodic table. What period is sodium in, and what group is sodium in?
- 5
Elements in the same group often have similar chemical properties. Explain why lithium, sodium, and potassium are placed in the same group.
- 6
Which elements are in period 2 from lithium to neon? Write their symbols in order from left to right.
- 7
Carbon, nitrogen, and oxygen are all in period 2. What does this tell you about their location on the periodic table?
- 8
Find chlorine, Cl, and bromine, Br. Are they in the same group or the same period? Explain your answer.
- 9
The noble gases are found in group 18. Name three noble gases and give their symbols.
- 10
An element is located in period 3 and group 2. What is the element name and symbol?
- 11
An element is located in period 4 and group 1. What is the element name and symbol?
- 12
Compare calcium, Ca, and selenium, Se. Which element is in group 2, and which element is in group 16?