Question

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Answer 1

Phy property metals-

1) shiny or lustreous.

2)sonorous

3) ductile

4) malleable

5) no tensile strength (can be broken easily)

6) high melting and boiling point

Phy. Property of non-metals-

1) not lusturous except iodine

2) not sonorous

3) brittle

4) lowmelting and boiling point

5) non ductile

6) non malleable

CHEMICAL_

METALS-

1) good conducter of heat and electricity

2) usually solid at room temperature

3) metals high in the reactivity series

react with air.

4) metals are electropositive.

NON-METALS

1) POOR CONDUCTER

2) usually gas

3) do not react with air

4) electronegative

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Answer 2

Hey there

Here ur answer

1) Physical properties of metals :-

→ Appearance :

Have a lustre known as metalic lustre . The surface is polishable .

→ Alloy formation :

Metals form alloys with each other and also with some non - metals .

→ Sonority :

They are sonorous .

→ Density :

They have a high density .

→ Physical state :

In general , they are hard crystaline solids .

2) Chemical properties of metals :-

→ Reaction with oxgen :

Metals burn with oxgen to form metal oxides .

→ Reaction with cold water :

Metals like sodium and potassium react with cold water to liberate hydrogen gas .

→ Reaction with acids :

Metals such as sodium , magnesium , aluminium react with dilute hydrochloric acid to give their respective salts .

→ Reaction with halogens :

Metals react with halogen to form ionic halides .

→ Reaction with steam :

Aluminium reacts slowly with steamj to form aluminium hydroxide and hydrogen .

3) Physical properties of non - metals :-

→ Melting point :

Usually they have high melting point .

→ Malleablity and Ductility :

They are malleable and ductile .

→ Heat conductivity :

They are good conductors of heat .

→ Physical state :

They exist as soft solids or gases .

→ Appearance :

Have no lustre and I . K dull . Surface cannot be polished .

4) Chemical properties of non - metals :-

→ Reaction with acids :

Generally , non metals do not react with acids , but when it's get heated with con . HNO₃ or con h₂SO₄ , the respective oxides or oxy acids are formed .

→ Reaction with steam :

Non metals are less reactive with steam .

→ Reaction with halogens :

Non metals react with halogens to form covalent halides .

→ reaction with oxygen :

Non metals when heated with oxygen produce covalent oxides . Most of the non - metal oxides are acidic in nature .

→ Reaction with cold water :

Carbon reacts with water to form carbon monoxide and hydrogen .

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