1.why metals are able to conduct heat and electricity?2.why

1.coz,the metals consist of atoms surrounded by electrons,the electros has electroconductivity.
2.It seems that the sodium has a better oxidability.Please check the sodium atom's nature and the periodic table of chemical element(atom or electro structure),seems it is very very easy to react with other elements,especially oxygen.
3.Plastics and ceramics have a great themal insulation ability,I don't know much about the plastics,but,i know more about the ceramics coz i am doing ceramics business.The ceramics has a melting poting between 1200- 1500 centigrades.Haha,it is almost barely melted at the normal high temperature; Ever there is a saying from a unknown artist,the ceramic is the most longevous thing created by human race.So,absolutely,it is the best material for the handle of some utensils.
I ever love physics and chemistry in my senior school time,but in the end,i lost myself!

第一句的第一个词应该是explain
1、解释金属为什么可以导热及导电。
2、解释为什么镁的熔点比钠高。
3、说明塑料和陶被用来制造金属厨具的手柄的原因。
p.s.希望能够帮到你~~