Give me some notes for the chapter Metal and Non Metals
Answers
Answer:
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Answer : Properties of Metals:
Metals are lustrous
Metals are colourful
Metals can conduct heat and electricity
Metals are ductile
Metals are malleable
Metals are sonorous.
Properties of non - metals:
They are poor conductors of heat and electricity. They are non - lustrous . They are non - malleable . They are non - ductile . And they are non - sonorous.
Malleability means , when it is hammered , it can be change into thin sheets.
Ductility means , they can be drawn into wires.
Sonorous means , they produce sound when they are beaten.
Then there are some excemptions. Ex:
Iodine is a liquid non - metal , since it possess metal's property (lustre).
All metals and non - metals are made up of elements and compounds.
Then......
Bromine is a liquid non-metal , that exists as a liquid in normal room temperature.
Mercury is a liquid metal , that exists as a liquid in normal room temperature.
Hope it helps
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