Upto which element, the law of octaves was found to be applicable ?

The Law of Octaves was found to be applicable to elements

State whether the following statement is True' or False'. If false, write the correct statement for the same. Upto calcium,the law of octaves was found to be applicable

State the law of octaves .

For which elements, Newlands' law of octaves is not applicable?

For which elements, Newlands' law of octaves is not applicable?

The law of octaves was given by

The law of octaves was stated by :