merits of newlands octave
Answers
Merits of Newland's Law Of Octaves :
1) This system worked quite well for the lighter elements. For example, lithium, sodium and potassium were brought together.
2) It relates the properties of the elements to their atomic masses.
3) For the first time, it was shown that there is a distinct periodicity in the properties of elements.
Demerits of Newland's Law Of Octaves :
1) The classification did not work with heavier elements, that is the elements lying beyond calcium. As more and more elements were discovered, they could not be fitted into Newland's Octaves.
2) Newland adjusted two elements cobalt (Co) and nickel (Ni) in the same slot and these were placed in the same column as fluorine, chlorine and bromine which have very different properties than these elements.
3) Iron, which resembles cobalt and nickel in properties, has been placed far away from these elements.
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