Group 1 elements

• Science
• Lower Secondary (Key Stage 3)

Group 1 elements

Group 1 elements

These elements are in the first column of the periodic table.

(Shown here in red)

Group 1 elements

These elements are all metals.

(Group 1 in red)

Group 1 elements

These elements are all metals.

They are all shiny

They all conduct electricity

They all conduct heat

BUT

Group 1 elements

These elements are all metals.

They are soft - you can cut some of them with a knife

AND...

Group 1 elements

These elements are all metals.

They are all very reactive.

This is what they look like.

Density

Group 1 all have a very low density.

Lithium is the lightest metal – it even floats in oil!

Group 1's name

The metals in this group are called the Alkali metals

They make alkali's when reacting with water.

Melting points

Low melting points

 

Alkali metals have much lower melting points than other metals.

Where in the periodic table are group 1 elements

1. First column
2. Second column
3. Third column
4. Last column

All of group 1 are ______

1. Non metals
2. Metals

All of group 1 are ______ (there 3 correct answers)

1. Shiny
2. Hard
3. Soft
4. Reactive

All of group 1 have ______ density

1. Low
2. Soft
3. High
4. Hard

Group one are called the ________ metals

1. Acid
2. Alkali
3. Alkaline Earth
4. Acid Earth

All of group 1 have ______ melting points

1. High
2. Down
3. Low
4. Up

Which alkali metal can float in oil?

1. Caesium
2. Potassium
3. Sodium
4. Lithium

Next task

On your computer using google slides

Create a poster on group 1 elements

Slide 1 - Which elements are in group 1

Slide 2 - Group 1's  reactivity with water

Slide 3 - Group 1's density

Slide 4 - Group 1's melting points

Slide 5 - 5 fun facts you can find out about group 1 metals.