What are the characteristics of mendeleev's periodic table?

Mendeleev’s periodic table is, based on the relation of properties of elements as dependent on the atomic weight of the element.

Characteristics of Mendeleev’s periodic table:

  1. In Mendeleev periodic table, vertical columns in the periodic table and horizontal row in the periodic table were named as groups and period respectively.
  2. The periodic table is composed of seven horizontal rows or periods and is numbered between 1 and 7.
  3. There is a regular gradation in the properties of elements in the horizontal rows(periods) from left to right.
  4. The periodic table is composed of eight vertical columns or groups. They ‘re numbered between 1 to 8.
  5. If the element is similar but not much, to distinguish between them it is placed below and slightly away from it. Thus, each column will have two sub-columns A and B, so elements will show more similarity in the same sub-columns.



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