Metals and Non metals

Metals and Non metals

Metals (Properties)

• These are lustrous.
• These are silver-gray or golden yellow in colour.
• Metals are malleable and ductile.
• Metals are good conductors of heat and electricity.
• Metals are sonorous, i.e., produce a ringing sound when hit.

Non-Metals (Properties)

• These are non-lustrous.
• The non-metals display a variety of colour.
• Non-metals are neither malleable nor ductile, but they are brittle.
• Non-metals are poor conductors of heat and electricity.
• Non-metals are non-sonorous.

Metalloids

Elements having intermediate properties between those of metals and non-metals are called metalloids. e.g., boron, silicon, germanium etc.

Compounds

A compound is a substance composed of two or more elements, chemically combined with one another in a fixed proportion. e.g., water, methane etc.