Here are the matches for each property to the correct type of element:
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Most are gases at room temperature - Nonmetals.
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Poor conductors of heat and electricity - Nonmetals.
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Good conductors of heat and electricity - Metals.
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Most are solids at room temperature - Metals (with the exception of mercury).
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Ductile, can be drawn into thin wires, and malleable, can be hammered into thin sheets - Metals.
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Tends to be brittle in solid state. Not ductile or malleable - Nonmetals.
So the correct answers are:
- Nonmetals: 1, 2, 6
- Metals: 3, 4, 5