C1 - Group 1 Elements

What are the group 1 elements?

Lithium, sodium, potassium, rubidium, caesium and francium.

How many electrons to group 1 elements have in their outer shell?

1

What are the properties of group 1 elements?

Very reactive, soft, low density.

What happens as you go down group 1?

• Higher relative atomic masses.

• Lower melting and boiling points.

• More reactive as outer electrons become further away from nucleus so less attraction and it is easier to lose them.

What is an ionic bond?

A bond between an alkali metal and a non-metal.

What do ionic reactions form?

Ionic compounds

What happens when group 1 elements are put in water?

They react vigorously to produce hydrogen gas and metal hydroxides - compounds that dissolve in water to produce alkaline solutions.

What happens when group 1 elements are put in chlorine gas?

They react vigorously when heated to produce metal chloride salts.

What happens when group 1 elements are put in oxygen?

They can react to form a metal oxide.

Are group 1 elements more or less reactive than transition metals?

Group 1 elements are much more reactive than transition metals.

Do group 1 elements have higher or lower melting points than transition metals?

Group 1 elements have much lower melting points than transition metals.