Kindly answer in basis of periodic classification
Dear Student
(a) Group 2 elements will form cations.So element B will form cation.
(b) In a period size decreases on going from left to right. and down a group siize increases. So element C will have the smallest size.
(c) Magnesium is a group 2 element.So element belonging to group 2 i.e. B will have the property similar to magnesium.
(d) C and E belong to group 17. They are called as halogens.
Regards
(a) Group 2 elements will form cations.So element B will form cation.
(b) In a period size decreases on going from left to right. and down a group siize increases. So element C will have the smallest size.
(c) Magnesium is a group 2 element.So element belonging to group 2 i.e. B will have the property similar to magnesium.
(d) C and E belong to group 17. They are called as halogens.
Regards