In 1865, an English chemist John Newlands arranged the elements in the increasing order of their ________ to explain their chemical properties.
A
Atomic number
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B
Atomic volume
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C
Valence electron
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D
Atomic weight
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Solution
The correct option is D Atomic weight John Alexander Newlands made an attempt to classify the elements in increasing order of their atomic weights known as the Law of Octaves.