Question

how did newlands classify the element what are its demerits ​

Answer 1

Newland stated the law of octets....

It states that if the elements are arranged in the increasing order of their atomic masses,every element was similar to it's corresponding eighth element in chemical properties....but this was applicable only upto calcium....

Answer 2

Answer:

Newlands arranged the element in an increasing order of their atomic masses, he found that every eighth element had properties similar to those of the first.

demirits:

1)Newlands could arrange 56 elements only up to

calcium in an increasing order of their atomic

masses.

2)This arrangement started with the lightest element hydrogen and ended up with thorium.

3)Newlands placed the metals Co and Ni, away from them along with the nonmetals O and S under the note To.

4)The properties of the new element discovered later did not fit in the Newlands law of octaves.