Write any three physical characteristics of non-metals.
(i) Non-metals are non-ductile and non-malleable.
(ii) Non-metals are non-sonorous.
(iii) Non-metals are poor conductors of heat and electricity.
An iron knife kept dipped in blue copper sulphate solution, turns the solution light green. Why?
Why electric wires are made of copper?
What is malleability? Name two most malleable metals. Are non-metals malleable and ductile?
Write any three physical characteristics of metals.
