Question

Newlands law of octaves advantages and disadvantages

Answer 1

he arranged the known elements in increasing order of their atomic masses and Found every eight element have similar property
Drawbacks it was applicable only Upton calcium
advantages . all the known elements could be arranged in this manner ( he started with hydrogen and ended with 56element thorium

Answer 2

disadvantage of newland's law of octaves:

#Newlands assumed that only 56 elements existed in nature and no more elements would be further discovered in the nearer future. But later on several new elements were discovered, whose properties couldn’t be defined as per the Law of Octaves.#In order to fit elements into law of octaves Newlands not only adjusted two elementsin the same slot but also adjusted some unlike elements under the same note.#Cobalt and nickel are in the same slot and are positioned in the same column with fluorine, chlorine and bromine possessing different properties than these elements.

Advantage of newland's law of octaves:

1. This law provided a basis for the classification of element into groups of elements having similar properties.

2. This law provided a wider scope to arrange all known elements into a tabular form