Periodic Trends|Metallic Character

Explain the variation in the following properties of the elements in the periodic table. (i) Atomic radius in a period (ii) Metallic character in a period (iii) Valency in a group.

On moving from left to right across a period in the periodic table the metallic character

Explain the variation in the following properties of the elements in the periodic table. (i) Atomic radius in the periodic table (ii) Metallic character in a period (iii) Valency in a group.

Assertion (A) : Metallic character order is K gt Mg gt Al gt B . Reason (R ) : Along the period (rarr) metallic character increases and decreases down the group (darr) .

In the periodic table, the metallic character of elements

Arrange the elements of period 3 in decreasing metallic character.

Describe how the metallic and non-metallic characters vary along a period and group the periodic table.