Question

State difference between the physical properties of metal and non-metal

Answer 1

Explanation:

HERE IS UR ANSWER

>>>PHYSICAL PROPERTIES OF METAL:-

1. State: Metals are solids at room temperature with the exception of mercury, which is liquid at room temperature (Gallium is liquid on hot days).
2. Luster: Metals have the quality of reflecting light from their surface and can be polished e.g., gold, silver and copper.
3. Malleability: Metals have the ability to withstand hammering and can be made into thin sheets known as foils. For example, a sugar cube sized chunk of gold can be pounded into a thin sheet that will cover a football field.
4. Ductility: Metals can be drawn into wires. For example, 100 g of silver can be drawn into a thin wire about 200 meters long.
5. Hardness: All metals are hard except sodium and potassium, which are soft and can be cut with a knife.
6. Valency: Metals typically have 1 to 3 electrons in the outermost shell of their atoms.
7. Conduction: Metals are good conductors because they have free electrons. Silver and copper are the two best conductors of heat and electricity. Lead is the poorest conductor of heat. Bismuth, mercury and iron are also poor conductors
8. Density Metals have high density and are very heavy. Iridium and osmium have the highest densities whereas lithium has the lowest density.
9. Melting and Boiling Points: Metals have high melting and boiling points. Tungsten has the highest melting and boiling points whereas mercury has the lowest. Sodium and potassium also have low melting points.

>>>PHYSICAL PROPERTIES OF NON METAL:-

1. Physical State: Most of the non-metals exist in two of the three states of matter at room
2. temperature: gases (oxygen) and solids (carbon). Only bromine exists as a liquid at room temperature.
3. Non-Malleable and Ductile: Non-metals are very brittle, and cannot be rolled into wires or pounded into sheets.
4. Conduction: They are poor conductors of heat and electricity.
5. Luster: These have no metallic luster and do not reflect light.
6. Melting and Boiling Points: The melting points of non-metals are generally lower than metals, but are highly variable.
7. Seven non-metals exist under standard conditions as diatomic molecules: H2(g) , N2(g) , O2(g) , F2(g) , Cl2(g) , Br2(l) , I2(s) .

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Answer 2

Answer:

Physical properties:

Metals-

Metals possess a lustre

Metals are generally hard

They are malleable

They are ductile

They are solids at room temperature except mercury

They are good conductors of heat and electricity

Non- metals-

Non –metals do not possess luster

They are brittle if solid

They are not malleable

They are not ductile

They can be solids, liquids or gases at room temperature

They are poor conductors of heat and electricity.