Metal-
1.metals are found in olny solid state except one that is mercury in liquid at room temperature
2.metals are malleable except zinc is brittle
3. metals are ductile
4.metals are sonorous
5. metals are good conductor of heat except bismuth which is bad conductor of heat
6. metals are good conductor of electricity
7. metals are lusture in appearance
8. metals are hard except sodium and potassium
non metal-
1.non metals are found in only solid and gaseous form except bromine which is liguid at room temperature
2. non metals are neither show the property of ductility nor malleability
3. non metals are non sonorous
4. non metals are poor conducter of heat
5. non metals are poor conducter of electricity except graphite which is good conducter of electricity
6.non metals are not hard except diamond which is hard
7. non metals are not lusture except iodine and graphite which is lusture

Difference between metals and nonmetals that metals are found mostly in solid form means it is generally found in solid form except Mercury but non metals are found in all the states whether solid liquid or gas so first difference is this next it could be that metal is a good conductor of electricity but non metal is not third it is sonorous in nature but non metal is not there are more differences