Newlands proposed the law of octaves. Mendeleeff suggested eight groups for elements in his
table
. How do you explain these observations in terms of modern periodic classification?
Answers
Answer:
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Answer:
1.According to Newland ,every elementary starting from a given element resemble in its properties to that of starting elements ,when
element are arranged in ascending order of their atomic weight
2. According to Newland ,the properties of fluorine and chlorine are similar and sodium and potassium ate Similar same as packed is given by modern periodic table .
3. Medeleff divided it into horizontal rows and vertical columns . He called them as periods and groups respectively Modern Periodic table also shows the same .
4. Medeleff gave the general formula for first group elements as R20 and the general for second group elements as R0. We can find same things in Modern Periodic Table .
5.The elements of particular group possess same common valency same . was proposed by Modern Periodic Table.
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