which of followings is a key property of metals ؟, they are good conductors of heat and electricity , they are brittle and dull in appearance , where are non metals generally located in the periodic table ؟, on the right side , on the left side , what is the physical state of most metals at room temperature ?, soild, gas, are non-metals malleable and ductile , no,they are brittle, yes, they can be hammered into sheets, which element is a liquid metal at room temperature?, mercury, iron, which of the follwing is a non - metal that exists as a gas ? , oxygen , copper, do metals tend to lose or gain electrons to from ions, they lose electrons to form positive ions , they gain electrons to form negative ions.

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