Write properties of metals and non-metals
Answers
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
⇒ Lustre :- pososs shining lustre
⇒ 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.
⇒ Lustre :- Do not have lustre except Iodine
⇒ Sound :- Does not give sound
⇒ Hardness :- Gernerally Soft except Diamond.
Answer:
properties of metal
they have lusture.
they have silvery grey or golden yellow color
they conduct heat and electricity
they are ductile
they are malleable
properties of non metal
they are seen in variety of color
they are poor conducted of heat and electricity
they are non lustrous sonorous or malleable