Question

. Give any five differences with examples between metals and non-metals with reference to their physical properties. Give one exception in each case

Answer 1

Metals: they have a high melting point and thus cooking vessels are made with metals.                                                                                                           Non-metals: they have a low melting point.

Metals:they are malleable, that means that they can be beaten into sheets.           Non-metals: they are non malleable.

metals: they are ductile, that means that they can be made into wires.                 Non-metals:they are non ductile.                

Metals:they have a high boiling point.                                                                              Non-metals:they have a low boiling point.

Metals:they get attracted to magnets.                                                                           Non-metals: they do not get attracted to magnet.

Answer 2

$\sf\Huge{\mathfrak{\green{Answer-}}}$

$\sf\small{\mathfrak{\blue{1.Metallic Lustre-}}}$ metals have a shining surface that is called metallic lustre while the non metals have dull appearance for example metal like silver ,gold have shining appearance non metals like sulphur has the appearance.

$\sf\small{\mathfrak{\pink{Exception-}}}$diamond a form of carbon is a non metal but has the most shining look iodine is also a non metal which gives shining crystals.

$\sf\small{\mathfrak{\blue{2.Malleability-}}}$ metals are malleable they can be beaten into sheets. but non metals cannot be beaten into sheets. they break into pieces when harmmered they are not malleable. Metals like gold,aluminium, copper etc. form sheets when harmmered.

$\sf\small{\mathfrak{\pink{Exception-}}}$ mercury is a metal It breaks into pieces when harmmered

$\sf\small{\mathfrak{\blue{3.Ductility-}}}$ Metals are dustile, and can be drawn into wires non metals cannot be drawn into wires.

$\sf\small{\mathfrak{\pink{Exception-}}}$ Mercury is a metal, but not dustile in nature.

$\sf\small{\mathfrak{\blue{4.conductivity-}}}$metals are good conductors of heat and electricity but non-metals are bad conductors of heat and electricity.

$\sf\small{\mathfrak{\pink{Exception-}}}$Graphite is a non-metal but is a good conductor of heat and electricity.

$\sf\small{\mathfrak{\blue{5.Hardness-}}}$Metals are usually hard while non metals are brittle and can be easily broken into pieces are converted into powder.

$\sf\small{\mathfrak{\pink{Exception-}}}$metals like sodium or potassium are quite soft and can be easily cut with a knife. diamond (a form of non metal carbon) is the hardest substance