Question

In Newland's classification, elements are arranged in an increasing order of their _________.

• A. atomic number
• B. mass number
• C. atomic weight
• D. atomic volume

Answer 1

The correct option is B mass number

In Newland's classification, elements are arranged in increasing order of their atomic mass.

When he arranged it in this way, he observed that every eight element has properties similar to that of the first element. So it wa also called the law of Octaves.