Question

Describe the physical property of metals and non metals

Answer 1

Metals:-

⇒ Physical state :- Metals are solid at room temperature except mercury and gallium

⇒ Melting & Boiling points :- Metals have high melting and boiling point except gallium and cesium

⇒ Density :- Generally have high density

⇒ Malleability & Ductility:- Metals are malleable and ductile

⇒ Electrical & Thermal conductor :- Good conductor of heat and electricity

⇒ Luster :- pososs shining luster

⇒ Sound :- Metals give sonorous sound

⇒ Hardness :- Generally hard except postassium ( K ) and sodium ( Na )

Non metals :-

⇒ Physical state :- Non metals generally exist as solid and gases except Bromine.

⇒ Melting & boiling point :- they have low melting and boiling point except diamond and graphite

⇒ Density:- Generally low density

⇒ Malleability and Ductility:- Neither Malleable nor Ductile

⇒ Electrical and thermal conductor :- poor conductor of heat and electricity except graphite.

⇒ Luster :- Do not have luster except Iodine

⇒ Sound :- Does not give sound

⇒ Hardness :- Gernerally Soft except Diamond.

Answer 2

            PHYSICAL PROPERTIESOF METALS AND NON-METALS

METALS

1. Physical State: Metals are solid in room temperature except for mercury and are shiny in appearance.
2. Hardness: All metals are hard except Sodium (Na) and Potassium (K).
3. Strength: Generally hard and strong except Sodium, Potassium & magnesium.
4. Lustre: Metals are lustrous that is they are shiny.
5. Malleability: Metals can be  beaten into  thin sheets.
6. Ductility: Metals can be stretched into long wires.
7. Sonorous: They are sonorous that is they produce a ringing sound when hit.

NON-METALS

1. Physical State: Solids, liquids (eg. BROMINE)or gases at room temperature and are dull in appearance.
2. Hardness: Generally soft except Diamond
3. Strength: Generally not so hard and strong except Diamond, which is the hardest substance known.
4. Lustre: They are not lustrous but rather dull in appearance.
5. Malleability: Non metals can't be beaten to thin sheets.
6. Ductility: Non metals can't be made into thin wires.
7. Sonorous: Non metals do not make a ringing sound when hit.

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