Metals and non metals

How can metals can be distinguished from non metals?

• By there shape

• By there colours

• only by chemical properties

• By chemical and physical properties

What is malleability?

• The property of metals in which they can be beaten up into sheets

• Metals produce a ringing sound

• Metals are good conductors of heat and electricity

• Can be beaten up into wires

Which is the best conductors of heat and electricity?

• Silver

• Iron

• Copper

• Gold

Which is the property of non metals?

• Hard

• Brittle

• Sonorous

• Shiny

Examples of metals

• Iron, copper, aluminium, calcium, magnesium

• Oxygen, iron,sulphur

• Carbon, oxygen, phosphorus

Which metals are soft and can be cut by a knife?

• Sodium and phosphorus

• Sodium and calcium

• Sodium and potassium

Only metal found in liquid state.

• Silver

• Gold

• Tin

• Mercury

Mixture of green material on copper

Due to which gasses copper hydroxide and copper carbonate is formed ?

• Carbon dioxide (CO2)

• Oxygen (O2)

• Water+carbon dioxide +oxygen

  (H2O + Co2 + O2)

Metals are………..in nature