Question

Explain why Group 13 to Group 18 elements are called as p-block elements ?​

Answer 1

Answer:

Group 13 to Group 18 elements are called as p-block elements.

Explanation:

• The number of p-orbitals is three and the total number of electrons that can be accommodated in a set of p-orbitals is six.

• The outermost electronic configuration of the elements in Group 13 to Group 18 varies from ns²np¹ to ns²np⁶ in each period, i.e., the last electron enters the outermost p-orbital.

• The last group, i.e., group 18 consist of noble gas elements with a closed valence shell ns²np⁶ configuration. Thus, noble gases exhibit very low chemical reactivity.

Hence, Group 13 to Group 18 are as called p-block elements.