Please give detailed explanation - Chemistry - The s-Block Elements

Question

Please give detailed explanation

Ajay Soni · Accepted Answer

Solution-
<img alt="" src=
"https://s3mn%20mnimgs%20com/img/shared/content_ck_images/ck_61eb909aae3ed%20jpg"
style="width: 1022px; height: 471px;">

Please give detailed explanation.