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Development Of Periodic Table:

The Periodic Table that we know today was not always same. It took years to get modified and to finally reach the format of modern periodic table. Some of the earlier attempts were Dobereiner 'Traids' and Newland 'The law of octaves'. The remarkable attempt by Mendeleev gave 'Mendeleev's periodic law', which was close to modern periodic table. The modern periodic table that we use today is given by Henry Mosley.
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License:[Source CIET, NCERT ]Feb. 20, 2017, 11:43 a.m.

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