Question

1. Three elements A, B and C
with similar properties have
atomic masses X, Y and Z
respectively. The atomic mass
of Y is approximately equal to
the average mass of X and Z.
What is such an arrangement
called?
1)TRIODE
2)TRIAD
3)TRIPLET
4)TRIMEROUS​

Answer 1

Answer:

Triads

Explanation:

Dobereiners' triads had elements such that the average of atomic masses of first and last elements is equal to atomic mass of the middle element