5.2 The Elements

What properties do most metals have?

• Shiny

• Silver or grey in colour

• Malleable and ductile

• Do not conduct heat and electricity

• Brittle

What properties do most non-metals have?

• Little or no metallic lustre

• Not malleable

• Good conductor of heat and electricity

• React explosively with water

___ are elements with metallic and non-metallic properties.

Which of the following statements is false?

• An element symbol can have one or two letters.

• The first letter of an element symbol is always capitalized.

• If there is a second letter in an element symbol, it is not capitalized.

• CO represents cobalt.

• Co represents cobalt.

___ conduct electricity, but not very well.

• Metals

• Non-metals

• Metalloids

Si stands for ___.

• Silicon

• Silver

• Sulfur

• Sodium