Chemistry

Shiny yellow metal.

• Gold

• Silver

• Aluminum

The best conductors of electricity are.................................

• copper and silver

• copper and gold.

• iron and gold.

They possess both metals and non-metals properties.

• Silicon

• Potassium

• Calcium

A ...........materials bend easily.

• flexible

• strong

• brittle

Big forces are needed to break or squash an object, this property is called................

• Hardness

• Strength

• Ductility

Its particles are arranged in layers.

• Graphite

• Diamond

The second most common element in the Universe.

• Helium

• Hydrogen

• Chlorine

The elements on the left of the stepped line are .................................

• metals

• nonmetals

• metalloids

Silicon, Germanium, Boron, Arsenic, and Antimony are called ...............................

• non-metal

• metals

• metalloids

A .................material is not easy to scratch

• strong

• stiff

• hard