Question

Newlands arranged the elements in an increasing order of their

Answer 1

Answer:

atomic mass ...............

is this your answer

Answer 2

Answer:

Atomic mass.

Explanation:

John Newlands put forward his law of octaves in 1864 in which he arranged all the elements known at the time into a table in order of relative atomic mass. When he did this, he found that each element was similar to the element eight places further on.

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