. Differentiate between metal and nonmetal under both physical and chemical characteristics with all exceptional cases?
Answers
Explanation:
physical properties of metals:
1.metals tend to have 1-3 electrons in valence shell
2.can conduct electricity
3.loose electrons
4.can conduct hear
5.high melting point
6.high boiling point
7. lustrous
8. malleable
9. ductile
10. sonorous
11. have metallic bond
12. example: iron , gold, silver, platinum
physical properties of non metal:
1.tend to have 4-8 electrons in the valence shell
2.can't conduct electricity
3.gain electrons
4. can't conduct heat
5. low melting point
6.low boiling point
7.non lustrous
8.non malleable
9. non ductile
10. non sonorous
11.have covalent bond
12. example: chlorine, carbon
chemical properties of metal:
metal + o2= metallic oxides
metal+ h20= metallic hydroxide
metal + acid = salt+ h2
metal + base=salt+ h2
chemical properties of non metal:
nonmetal + o2= non metallic oxides
non metal + h2o= no rxn
non metal + acid=no rxn
non metal + base= salt
exceptional cases of metals and non metals:
non metals are lustrous except
iodine and graphite
metals are hard except
sodium and potassium
non metals are not hard except
diamond
metals are malleable except
zinc, arsenic, antimony
metals are ductile except
zinc, arsenic , antimony
non metals are non ductile except
carbon fiber
metals are good conductors of heat and electricity except
bismuth
tungsten
non metals are bad conductors of heat and electricity except
graphite
metals are solid except
mercury
gallium
metals have high density except
sodium , potassium
non metals have low density except
diamond