Up to which element, the Law of Octaves was found to be applicable
(a) Oxygen
(b) Calcium
(c) Cobalt
(d) Potassium
Up to which element, the Law of Octaves was found to be applicable
(a) Oxygen
(b) Calcium
(c) Cobalt
(d) Potassium

Solution:

Answer: Option (b) Calcium

Explanation: Newland’s law of octaves is applicable to elements with atomic masses up to 40 da, which corresponds to the elements up to and including Calcium. Every eighth element, after calcium, has properties that are similar to those of the first element.