If A,B and C are the three elements of Dobereiner's Traid and atomic weight of A and B are 7 and 15 respectively then the atomic weight of C is:

Three elements X,Y,Z are following Dobereiner's Triad rule. If the atomic weight of X and Y are 10 and 26 respectively, then atomic weight of Z will be:

A,B and C constitute the doberiner's traid. Atomic mass of a and c are 7 and 23 respectively' calculate atomic mas of B.

In a triad of three elements A, B, and C, the atomic mass of A and B are 80 and 120 respectively. Find the atomic mass of element C.

Three elements X, Y and Z follow Doberiner's law of traids. If atomic masses of X and Z are 7 and 39 respectively, then determine the atomic mass of Y.

A,B and C are the elements of a Deobereiner's triad. If th atomic mass of A is 7 and that of C is 39, what should be the atomic mass of B ?

X,Y and Z are the elements of a Dobereiner's Traid. If the atomic mass X is 7 and that of Z is 39,what should be the atomic mass of Y?