Question
Chemistry Question on Classification of elements & periodicity in properties
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
Answer
Inert gases
Explanation
Solution
With the discovery of inert gases (group zero in Mendeleefs 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.