Question

chlorine, bromine, iodine for a dobereiner's traid the atomic masses of Cl and I are 35.5 and 126.9 respectively predict the atomic mass of bromine​

Answer 1

Answer:

=81.2

Explanation:

Dobereiner's triads- It states that the atomic mass of middle element in doberiener's triad is exactly or nearly the arithmetic mean of the atomic masses of other two elements.

Atomic mass of bromine (Atomic massofchlorine)+(AtomicmassofIodine)

⟹ Atomic mass of Bromine =  2 35.5+126.9

⟹ Atomic mass of Bromine =81.2