Classification of Elements

Front

Electropositive nature

Back

Characteristic of metals that can lose electrons.

Front

Hydrogen is the first element in the periodic table.

Back

Front

Non-metal characteristics

Back

Non-metals are chemical elements that are poor conductors of electricity and heat. They form anions and ionic bonds with metals.

Front

Use of Sonorous Metals

Back

Metals are used to make ringing bells due to their sonorous property.

Front

Reaction with water.

Back

Metals and non-metals have distinct reactions with water.

Front

Sodium + Oxygen

Back

Forms Sodium Oxide

Front

Definition of alkalis

Back

Metal hydroxides that dissolve in water are called alkalis.

Front

Examples of alkalis

Back

Sodium Hydroxide and Potassium Hydroxide are examples of alkalis.

Front

Reaction of non-metal oxides with water

Back

Non-metal oxides react with water to form acids.