Question

from the list of elements given below , make three triads and name the family of each triad (Cl , Li , Ca , Br , Na , Sr , I , k and Ba)

Answer 1

firstly this is question of chem not of maths ..
now see the solution
1st traid will be of Ca Cl Ba

Answer 2

Step-by-step explanation:

From the list of elements given below, make three triads and name the family of each triad. List : Cl, Li, Ca, Br, Na, Sr, I, K and Ba. Ans. (i) Alkali metals triad : Li Na K (ii)Alkaline earth metals triad : Ca Sr Ba (iii) Halogens triad : Cl Br I 7.