Name of elements with atomic numbers greater than 100 are given by IUPAC Why is potassium considered as an s - block element ?

Name of elements with atomic numbers greater than 100 are given by IUP

1.	Name of elements with atomic numbers greater than 100 are given by IUPAC Why is potassium considered as an s - block element ?
Answer» Solution :The electronic configuration of potassium is : `K(19):1s^2 2s^2 2p^26 3s^2 3p^6 4s^1 or [Ar] s^1` since the last electron ENTERS the s-orbital of the OUTERMOST ENERGY level, potassium is considered as an s-block ELEMENT