4NA Revision: Metals Part 1

Which of the following is not a physical property of metals?

• malleable

• high density

• conducts electricity

• low melting point

Metals have layers of atoms that can slide over one another.

Which physical property does this contribute to?

• High melting point

• Good conductor of electricity

• Good conductor of heat

• Ductile

An alloy is a ________ of a metal and one or more other elements

Which of the following are alloys? (Select all possible answers)

• Brass

• Steel

• Bronze

• Zinc

Alloys are _______ and harder than pure metals.

Adding a different element to a metal ______ its melting point.

Answer explanation

Adding an impurity to a metal decreases its melting point and increases its boiling point.

Which of these metals is the most reactive?

• Zinc

• Copper

• Magnesium

• Iron

Which of these metals is the least reactive?

• Silver

• Lead

• Potassium

• Calcium

What is the reaction where more reactive metal replaces a less reactive metal from its compound?

• Replacement

• Exchange

• Displacement

• Swapping

Metal + acid --> _______ + ________