Chapter 3a Metallic Properties

The percentage of metallic elements on the periodic table is

• 80%

• 20%

• 50%

• 100%

The properties exhibited by all metals are

• lustre

  high conductivity

  malleability

  ductility

• lustre

  low conductivity

  malleability

  ductility

• lustre

  high conductivity

  brittleness

  ductility

• dull appearance

  high conductivity

  malleability

  ductility

The properties that best describe the difference between transition metals and main group metals are:

• higher density & higher melting points

• higher malleability & higher ductility

• all are magnetic & tend to be harder

• lower melting points & a dull appearance.

The property that most clearly demonstrates a difference between a metal and a non-metal is

• melting point.

• boiling point.

• conductivity.

• density.

The two best electrical conductors are

• gold & silver

• potassium & sodium

• gold and iron

• mercury & carbon

Gold and silver are not usually used in electrical wiring because they are too expensive and rare.

• True

• False