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at STP, which of the following is the best conductor of electricity? a helium b oxygen c mercury d hydrogen
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It can't be Hydrogen is the best answer. Helium is a gas. Mercury is a liquid at room temperature. Oxygen is strongly attracted to positive ions in that state. It looses its color more faster. Get it?
I mean can be hydrogen
three of those are non-metals, which are generally TERRIBLE conductors. Only one is a metal, which is a GREAT conductor
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