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.

The atomic masses of Li and K are 7 and 39, respectively . According to law of triads the atomic mass of Na will be

The atomic masses of Li and K are 7 and 39, respectively . According to law of triads the atomic mass of Na will be

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.

The three imaginary elements X,Y and Z represent a Döbereiner's triads. If the atomic mass of element X is 14 and that of element Y is 46, then the atomic mass of element Z will be:

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:

Atomic no. of X,Y &Z are 33,53 &83 respectively.