Iron is ________ reactive than copper.
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Phosphorus is very ________ non-metal.
Which of the following can be beaten into thin sheets?
Zinc
Phosphorus
Sulphur
Oxygen
Which of the following statements is correct?
All metals are ductile.
All non-metals are ductile.
Generally, metals are ductile.
Some non-metals are ductile.
Metals are _______ conductor of heat and ________.