Group 1 Elements

Question 1

How do group 1 metals react with water ?

Answer 1

They react vigorously and violently and produce metal hydroxide + hydrogen

Question 2

What does the reaction between group 1 metals and water produce ?

Answer 2

Produces hydrogen gas

Question 3

Why are group 1 metals stored under oil?

Answer 3

So they don’t react with the oxygen in the water

Question 4

How does the reactivity of group 1 metals vary ?

Answer 4

The reactivity increases as you go down the group

Question 5

Why are group 1 metals known as alkali metals?

Answer 5

They are known as alkali metals because they form an alkali solution when in water

Question 6

What happens when the metals are put in water ?

Answer 6

-They produces bubbles and start fizzing
-Some of the metals float as they are less dense
-hydrogen gas produced

Question 7

What are all the group 1 metals ?

Answer 7

Lithium ( least reactive )
Sodium
Potassium
Rubidium
Caesium
Francium ( most reactive )

Question 8

What are the properties of group 1 metals ?

Answer 8

• Soft, can be cut easily with a knife to expose the shiny inner surface
• when the surface reacts with oxygen it becomes dull
• low densities
• low melting and boiling points
• overall, highly reactive metals