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The metal with the highest electrical conductivity is ____.
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fluorine (F)
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A black, solid halogen that gives off a purple vapor is ____.
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gold (Au)
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The most malleable and ductile metal element is ____.
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hydrogen (H)
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A dense, radioactive, noble gas is ____.
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iodine (I)
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The most reactive and electronegative element is ____.
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potassium (K)
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A yellow, solid, nonmetal element is ____ (brimstone).
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radon (Rn)
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Li, Na, and ____ are highly reactive alkali metals.
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silver (Ag)
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The lightest and most abundant element in the Universe is ____.
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sulfur (S)
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