Question

2,8,1;2,8,2;2,8,8,2;2,1
a) identify group number of each element
b) which two elements belong to same group
c) compare atomic radii of A,B and D​

Answer 1

Answer:

a)GROUP NUMBER OF:-

2,8,1  is an element of Group  1

2,8,2  is an element of Group 2

2,8,8,2 is an element of Group 2

2,1 is an element of Group 1

b)2,8,1 and 2,1 belong to same group

2,8,2 and2,8,8,2 belong to same group