Question

"HELP OUT SOON GUYS". (iv) Given that X, Y, Z are triads. Atomic masses of X and Z are 32, 125 respectively.
Then what is the atomic mass of Y?
a)
157 b) 78.5 c) 93 d) 75.5
(v) In which order do we need to put Na, K, Li for Dobereiner's Law of Triads?
a) Li, Na, K b) Na, Li, Kc) K, Li, Na d) Na, K, Li​

Answer 1

Answer:

A one (93) 8s the answer.

Answer 2

1.

y = (x + z)/ 2

y = (32+125)/2

y = 78.5

2.

Li, Na, K formed a Dobereiner's triad. Thus the element between Lithium and potassium is Sodium (Na).