Question

Arrange the following elements in the order of their decreasing metallic character: $\mathrm{Na},\mathrm{Si},\mathrm{Cl},\mathrm{Mg},\mathrm{Al}$

Answer 1

Metallic character:

• The term "metallic character" refers to a group of chemical properties linked with metals.
• Most metals are malleable and ductile, which means they can be deformed without breaking.
• The metallic character in the table reduces as you move from left to right across a period.
• The metallic nature increases as you move down the periodic table.

Arranging in decreasing order of metallic character :

• The propensity of an element to shed electrons and generate positive ions or cations is referred to as its metallic character.
• The most electropositive elements are alkali metals.
• The propensity of an element to receive electrons and create negative ions or anions is referred to as its non-metallic character.
• The most electronegative elements are chlorine and oxygen.
• In its valence shells, sodium has one electron, magnesium has two, aluminum has three, and chlorine has seven.
• Hence Sodium has the most metallic qualities, followed by magnesium, aluminum, and chlorine, which have non-metallic properties.
• Moving right reduces the metallic characteristic with time.
• As a result, the order is $\mathrm{Na}>\mathrm{Mg}>\mathrm{Al}>\mathrm{Si}>\mathrm{Cl}.$

The order of their decreasing metallic character is $\mathrm{Na}>\mathrm{Mg}>\mathrm{Al}>\mathrm{Si}>\mathrm{Cl}.$