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03-07-2018
Chemistry

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two defect of mendelevs periodic table

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27-09-2020

Explanation:

Anomalous pairs. Cobalt (58.9) with higher atomic mass precedes Nickel (58.6) in the periodic table. Tellurium (127.

Position of Isotopes. The isotopes of an element are atoms of that element having similar chemical properties but...

Grouping of chemically dissimilar elements. Elements such as Copper and Silver...

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