Question

what is the improvement in mendeleev periodic table?​

Answer 1

Explanation:

improvement in Mendeleev periodic table was made because it was almost complete but it had a few defects in it and these defects were bec of taking atomic mass as a base of arranging the elements

Answer 2

The Improvements and Merits in Mendeleev periodic table include the following:-

• Mendeleev's Periodic Table was based on the increasing order of atomic mass, where the elements having the same chemical properties belong to the same group.
• The major improvement in the Mendeleev periodic table was that all the elements were rearranged in the increasing order of Atomic number instead of Atomic masses.
• A new group (group 0) was added on the right of the Periodic table which includes all the noble gases, which was discovered by Ramsey.
• Each group or vertical column was further divided into two subgroups, namely A and B.
• Mendeleev also left some blank space in his periodic table by saying some elements were undiscovered at that time, which is a big Merit of Mendeleev's Periodic table.

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