Group 1

What gas is formed when a group 1 metal reacts with water?

Which is NOT a property of group 1 metals?

• They are soft and can be cut with a knife

• they corrode rapidly when exposed to oxygen in the air

• They produce an acidic solution when reacted with water

• They form hydrogen when reacted with water

Calculate the Mr of NaOH

How does the reactivity change down group 1?

• Increases

• Decreases

Which statement is correct for the element with proton number 19?

• It is a gas that dissolves in water

• It is a hard metal that does not react with oxygen

• It is a non metal that burns quickly in air

• It is a soft metal that is highly reactive with water