1. Learning Objective Describe the properties of group one elements
To be able to:
Describe the properties of group one elements
Key Words:
Group, Reactivity, Hydroxide

2. Fill in the missing properties of metals and non- metals
Sunday, 12 May 2019
Group One Elements
Date and title in books. You need a pen, pencil & ruler.
Starter Activity – 5 minutes
Fill in the missing properties of metals and non- metals

3. (F)
Target 9-1
State the name and chemical symbols of element in group one
(F/H)
Target 4-9
Describe the reactions of group one elements with water
(H)
Target 5-9
Write word and balanced symbol equations for the reactions of group one elements with water
Extension: Application of Knowledge
Target 8/9
Predict the properties of group one elements, based on observation of other members of the group.
Learning Outcomes

4. Group One is found on the left most side of the periodic table
Take a look at the sample of Lithium. How can you tell it is a metal?

5. What did you observe when the lithium was added to water?
What are your predictions for sodium?
What did you observe when the sodium was added to water?
What are your predictions for potassium?

6. What about sodium and potassium
Lithium + Water  Lithium Hydroxide + Hydrogen Li + H2O  LiOH + H2
Can you balance the equation?
2Li + 2H2O  2LiOH + H2
What about sodium and potassium

7. What would the equations for sodium and potassium be?
Group one elements also react readily with oxygen and chlorine.
Lithium + Oxygen  Lithium Oxide
Lithium + Chlorine  Lithium Chloride
What would the equations for sodium and potassium be?
Li + O2  Li2O
Li + Cl2  LiCL
Can you balance these equations?
What about Na and K?