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Answers
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1)
METALS:-
1) all metals are solid at room temperature except mercury, which is a liquid at room temperature.
2) all metals are lustrous.
3) metals have high densities except lithium, soduim and potassium.
4) metals are malleable (can be beaten into thin sheets).
5) metals are ductile (can be drwn into wires).
NON-METALS :-
1) non-metals exists as solid, liquid and gas.
silicon is a solid, bromine is a liquid and oxygen is a gas.
2) non-metals are non-lustrous.
3) they have low density.
4) they are non-malleable.
5) they have low melying and boiling point.
2)
Copper metal is used to make electric wires because :
(I) it is a good conductor of electricity.
(ii) it has high melting point.
3)
Gold is used to make jewelry because of the attractiveness of its luster and because of its rarity. It also doesn't tarnish and doesn't react with air the way a metal like iron does. Gold is malleable, which means it can be beaten into very thin sheets.
answer of first question
Answer of second question:
- copper is used in electrical wires because copper is good conductor of electricity.