Question

Some properties are listed in the following table. Distinguish between metals and non-metal on the basis of these properties.
(1) Appearance
(2) Hardness
(3) Malleability
(4) Ductility
(5) Heat conduction
(6) Conduction of electricity

Answer 1

Hint: Metals are shiny and nonmetal are not that much shining. Malleable, meaning that they can be formed into other shapes, such as thin sheets or foils, without breaking or cracking. Ductile materials are those which can be easily drawn into wires.

Complete step by step answer:

Properties	Metals	Non- metals
Appearance	Lustrous	Non- Lustrous
Hardness	Hard except sodium and potassium	Generally soft except diamond
Malleability	Generally malleable	Non-malleable
Ductility	Generally ductile	Non-ductile
Heat conduction	Good conductors	Poor conductors
Conduction of electricity	Good conductors	Poor conductors

Metal hardness is a characteristic that determines the surface wear and abrasive resistance. The ability of a material to resist denting from impact is related to hardness as well as a material's ductility. Out of all the non-metals, only solids are expected to be hard. Sulphur and phosphorus are quite soft, but diamond is very hard.
Electrical conductivity in metals is a result of the movement of electrically charged particles. ... It is these "free electrons" that allow metals to conduct an electric current. Because valence electrons are free to move, they can travel through the lattice that forms the physical structure of a metal.

Note: Metal is a good conduction of heat. Conduction occurs when a substance is heated, particles will gain more energy, and vibrate more. These molecules then bump into nearby particles and transfer some of their energy to them.