Write any three physical characteristics of metals.
(i) Metals can be hammered to make sheets so they are malleable.
(ii) Metals can be drawned into very thin wires, that means metals are ductile.
(iii) Metals are good conductors of heat and electricity.
Write any three physical characteristics of non-metals.
What is malleability? Name two most malleable metals. Are non-metals malleable and ductile?
An iron knife kept dipped in blue copper sulphate solution, turns the solution light green. Why?
Why electric wires are made of copper?
