Write some physical and chemical properties of metal and nonmetal.

Metals are the materials that are hard, shiny, malleable, fusible, ductile, etc. are termed as metal. Few examples of metals are iron, gold, silver, aluminium, copper, mercury etc.

Physical properties of Metals are:

• The density of metals is usually high.

• Metals are malleable and ductile.

• Less reactive metals like gold, silver, platinum, etc do not tarnish easily. They stay shiny and lustrous.

• Metals form an alloy with other metals or nonmetals.

• Metals are good conductors of heat and electricity. Lead is an exception.

• Generally, metals are in a solid-state at room temperature. Except for Mercury. Mercury is in a liquid state.

Chemical Properties of Metals are:

• Many metals produce metal oxide by burning in the oxygen of the air. Highly reactive metals react violently when they’re burnt in oxygen.

• Metals like sodium and potassium are stored in oil as they react with air in seconds. They’re highly reactive metals.

• Some metals react with air and corrode. For e.g. Iron.

• Metals produce metal oxide and hydrogen gas while reacting with water.

• Soluble metal oxides dissolve in water and create metal hydroxide.

• Not all metals react with water. However, highly reactive metals like sodium and potassium react with water violently and an exothermic reaction takes places, the hydrogen immediately catches fire.

• Salt and hydrogen are produced when a metal reacts with an acid.

• A metal generally displaces a less reactive metal in a metal salt solution.

Non-metals are the materials which have low density and are poor conductors of heat and electricity.

Physical Properties of Non-metals are:

• Nonmetals are poor conductors of heat and electricity. Graphite and Gas carbon are exceptions.

• Unlike metals, nonmetals aren’t malleable and ductile.

• Nonmetals have a low density.

• Nonmetals exist in all states of matter at room temperature.

• Nonmetals react more with metals than with nonmetals.

Chemical Properties of Non-Metals are:

• Usually, nonmetals react with other nonmetals in high temperature.

• Most nonmetals do not react with air in room temperature.

• White phosphorus is the only nonmetal that reacts with air to form its oxide by burning.

• Usually, nonmetals do not react with water. Except for Chlorine, chlorine dissolves in water to form an acidic solution.

• They do not form alloys. However, nonmetals like carbon, silicon and phosphorous.

• Different nonmetals have different reactions.

• Chlorine is the most reactive metal in the halogen family i.e. Chlorine (Cl), Bromine (Br), Iodine (I), and Fluorine (F). The reactivity order of the halogen family is Cl > Br > I.

• Therefore, Chlorine (Cl) can displace Bromine (Br) and Iodine (I) from solutions of bromides (NaBr) and Iodides (NaI).

• Ionic solids are formed when nonmetals with high electronegativity react with alkali and alkaline earth metals.


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