1.why metals are able to conduct heat and electricity?2.why the melting point of magnesium(649 c)i1.elplain why metals are able to conduct heat and electricity?.2.explain why the melting point of magnesium(649 c)is much higher than the melting point

1.why metals are able to conduct heat and electricity?2.why the melting point of magnesium(649 c)i1.elplain why metals are able to conduct heat and electricity?.2.explain why the melting point of magnesium(649 c)is much higher than the melting point 为什么电离能高的非金属反应越大?原题是这样的:why are non metals with higher ionization energies more reactive?提示: Hint: how do metals and non metals react differently急用! 谁能帮我做这两道英语科学题?.1.explain the layout of the periodic table.includ these words:groups,periods,atomic number,metals non-metals,metalloids and noble gases.2.plutonium has an atomic number of 94.explain why there are no naturally WHY are there are 102 elenents found in mature ,most of which are metals中文 亲,Q41:The market for recycled commodities likealuminum and other metals remain strong despite economic changes in the recyclingindustry.[*]commodities like aluminum and other metals remain [*]commodities like those of aluminum and other metals are ________you_______get the computer to work again?A.are,able.B.are,able to.C.can,able to D.can,abl There are various kinds of metals,each having its own properties改为状语从句.! Which of them is correct? Why?A car is yravelling on a road during lightning.Boy:We should leave the car.The case of tjis car is made of metals which are good conductors. We may easily be struck by lightning.Girl:It is safer to stay inside the car.El Abl是什么计量单位? D盘中ABL. Why are you are pig? WHY YOU ARE HERE? Why are you here? why are you so why are you so why are you so why are you so