Chemistry, asked by rickkydada, 1 year ago

Newlands proposed the law of octaves. mendeleev suggested eight groups for elements in his table. how do you explain these observations in terms of modern periodic classification?

Answers

Answered by Isnam522
24
this was due to the periodicity of elements I. e. repetition of similar properties after certain regular interval of time.
Answered by Anonymous
39

● According to Newlands,every element starting from a given element resembles in its properties to that of the starting element,when elements are arranged in ascending order of their atomic weights.

● According to Newlands, the properties of fluorine and chlorine are similar and sodium and potassium are similar same as packed is given by modern periodic table.

● Mendeleeff divided it into horizontal rows and vertical columns.He called them as periods and groups respectively. Modern Periodic table also shows the same.

● According to mendeleef the elements of same group have same properties. Modern Periodic Table also proposed the same thing.

● Mendeleeff gave the general formula for first group elements as R2O and the general for second group elements as RO. We can find the same thing in Modern Periodic Table.

● The elements of particular group possess same common valency same was proposed by Modern Periodic Table.

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