Question

write the difference between metal and non metal
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Answer 1

Basis for Comparison Metals Non-Metals

Number of electrons Contains 1,2 or 3 electrons in valence shell (except hydrogen) Contains 4, 5, 6 or 7 electrons in valence shell.

Conducting property Good conductors Bad conductors

Tensile strength High Low

Melting and Boiling point High Comparitively very low

Existence in periodic table Left side Right side

Nature Electropositive Electronegative

Bond Metallic bond Covalent bond

State Generally solid (exception mercury and gallium) Solid, liquid and gas.

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