Question

Elements A,B and C are the members of triad . Element 'A' has atomic weight 40 and 'C ' has atomic weight 137.6. What is the atomic weight of 'B'?


79.2
88.8
130
22.4​

Answer 1

Answer:

88.8 as your correct answer

Explanation:

please follow me and brinly my answer

Answer 2

$\huge\fbox\purple{AnSwEr}$

b) 88.8

Law of triad :

The atomic weight of middle element will be equal to average atomic masses of other two elements..