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Question

What are the advantages of Mendeleev's periodic table over others?


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Solution

Advantages of Mendeleev's periodic table:

  • Prediction of new elements: The existence and properties of elements that are similar to Boron/Aluminum/Silicon is predicted by Mendeleev.
  • He left the gap after some elements and gave them hypothetical names such as Eka-Alumium/Eka-Silicon.
  • He took more similarities in properties than to atomic mass in the arrangement such as Iodine I has a smaller weight than Tellurium Te but it was placed after it.
  • From the periodic properties, Beryllium Be, IndiumIn, Gold Au, and PlatinumPt were predicted to be having inaccurate mass which lead to the re-estimation of their real masses.
  • Mendeleev could accommodate all the sixty elements discovered at that time and could accommodate the noble gases which, were discovered later.
  • His table could point out the incorrect atomic weight of some elements known at that time.

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