Question

What is the exception in loustours property in metals ???.....

Answer 1

Answer:

Mercury is exception. All metals are malleable. Mercury is exception.

Explanation:

Answer 2

Explanation:

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Secondary School Environmental sciences 10 points

What are the exceptional properties of metals and nonmetals

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AnviGottlieb

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Heya...here's your answer... friend

I was taking a photo but brainly doesn't support inserting more than one...pic..so I wasn't.. able to send you the pic of the answer..

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PHYSICAL PROPERITES OF METALS:-

1. Generally metals are hard.

Exception – sodium and potassium. It is so soft that it can cut with a knife.

2. Metals are found in solid state exception – mercury exists in liquid state.

3. The boiling point and melting point of metals are high.

Exception – sodium and potassium. Gallium cesium

4. Its density is high.

Exception – sodium and potassium.

5. It is sonorous.

Exception – Mercury

SONOSITY:-When a metal is beaten it produces sound, this property of metal is called its sonority.

6. It is malleable.

Exception – Mercury

MALLEABILITY:-

A metal can be changed into a thin sheet by hammering this property of metal is called malleability.

- Aluminum is the best malleable metal.

7. It is ductile.

Exception – mercury.

DUCTILITY

A metal can be changed into a thin wire this property of metal is called ductility.

- Gold and silver are the best ductile metal.

. It a good conductor of heat.

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CHEMICAL PROPERTIES OF METALS

What happens when metals are burnt in air?

- Almost all metals combine with oxygen to form metal oxide.

METAL + OXYGEN – METALOXIDE

e.g. 2Na + O2 – 2NaO

2Cu + O2 – 2CuO (a black oxide)

4Al + 3O2 – 2Al2O3

- Generally, metal oxides are basic in nature. But some metal oxides are both acidic as well as basic in nature.

- Such metal oxides which react with both acids as well as bases to produce salts and water are known as amphoteric oxides.

e.g. AL2O3 + 6HCl – 2AlCl3 + 3H2O

Al2O3 + 2NaOH – 2NaALO2 + H2O

(Sodium aluminate)

- Most metal oxides are insoluble in water but some of these dissolve in water to form alkalis.

e.g. Na2O(s) + H2O(l) – 2NaOH(aq)

K2O(s) + H2(l) – 2KOH(aq)

- physical properties of non metals..