Question

Do you think that Newlands law of octaves is correct? Justify​

Answer 1

$ANSWER:-$

No , newlands law of octaves is not correct because it has some limitations.

Explanation:

$LIMITATIONS :-$

• This law was applicable only up to the calcium after calcium every 8th element do not possess the same properties similar to that of the first.
• Newland assumed that there were only 56 elements existed in nature and no more elements would be discovered in the future . But later on several new elements were discovered whose properties did not fit into the law of octaves.
• One more drawback is that , in order to fit elements into his table , Newlands adjusted two elements in the same slot and also put some unlike elements in the same column .
• example Cobalt and nickel are in the same slot and these are placed in the same column as fluorine , chlorine and bromine which have very different properties than these elements. Iron which resembles Cobalt and nickel in properties, has been placed far away from these elements.