Reaction of metals

1.Give four properties of metals.

2.what is an unreactive metal? Name one example.

Name one metal that reacts with water and acid:

• Sodium

• Magnesium

• Iron

• Gold

Metals react with water and give off:

• oxygen gas

• hydrogen gas

• oxygen and hydrogen gas

• carbon dioxide

Why are non-metals good insulators?

• because their electrons are closely packed

• because they have sea of free electrons

• because they don't have sea of free electrons

• because they can't conduct electricity

Name a non-metal which can reflect light:

• Graphite

• Diamond

• Nitrogen

• Hydrogen

Which metal can be used to make electricity cables?

• Copper

• Gold

• Silver

• Aluminium

A mixture of metals is called:

• solution

• colloid

• alloy

• suspension

Describe the arrangement of electrons in a metal?

With which do metals react most easily,water, acid or oxygen? Explain.