what is metal ?what are the propreties of matel
Answers
Metals: Those substances that are malleable, ductile and conduct electricity or heat.
On the basis of electronic configuration
Metal: Elements having 1 or 2 or 3 valence electrons in their outermost shell is called metal.
For e.g: Na --> 2,8,1
the propreties of metal are following:-
- Metals are malleable and ductile
- Metals are good conductors of electricity and heat.
- Metals are sonorous.
- Metals are generally hard(except sodium and potassium).
- Metals are Solid at room temperature(except Mercury which is a liquid metal)
- Malleability: The property which allows the metals to be hammered into thin sheets is called malleability.
- Ductility: The property which allows the metals to be drawn into wires is called ductility.
- Sonorous: This means Capable (ability) of producing a ringing sound.
Metals are the types of elements which have the ability to lose electrons
Example::- Iron(Fe) , Gold(Au)
Physical Properties:-
Lustrous : Metals generally have a shiny appearance. Because of this metallic lustre metals are used for making jewellery.
Sonority : When metals are hit with a hard object they produce sound.
Ductility : Metals can be drawn into thin wires.
Malleability : Metals can ve beaten into think sheets.
They conduct heat and electricity : Metals are good conductors of heat and electricity.
Chemical Properties:-
Easily corrodible
Can lose electrons
Form basic oxides
Have lower electronegativities
Act as very good reducing agents