Question

There are 3 elements A, B and C having atomic masses 58.7, 58.9, 55.8 respectively.

Arrange them in Dobereiner’s triads and check whether they follow Dobereiner’s triad or not.​

Answer 1

Answer:

Atomic wt. of Cl=35.5 and of I=127. According to Doeberiner triad rule atomic wt. of Br will be: