Q. The discovery of which of the following group of elements gave death blow to the Newland’s law of octaves?
A) Inert gases
B) Alkaline earths
C) Rare earths
D) Actinides
Explanation
(a)
With the discovery of inert gases (group zero in Mendeleef’s Periodic Table), the law of octaves lost its original significance since, it was now the ninth element which had properties similar to the first one.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.