State newlands law of octave and what were its demerits
Answers
Answer:
Newlands law of octave states that every eight element shows properties similar to the first element.First elements properties matches with the eight,similarly,second with ninth.It was similar of music notes sa,re,ga,ma,pa,da,ni,sa.
Explanation:
it was similar with music notes because every first note was similar with of eight note.
Its demerits were
it was applicable till the 20th element because after 20th element no other element shows properties similar to the first element in its respective element...
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.
