Question

A,b,c are fobereiners traids .If atomic mass of Aand Bare 14 nad 46 respectively, what will be atomic mass of C

Answer 1

If A, B and C are dobereiner 's triads then the atomic mass of the middle element is equal to the average of the atomic masses of the other two.

Atomic mass of B= atomic mass of A. +atomic mass of C/2

46=14+X/2

46*2=14+X

92-14=X

78= atomic mass of C