Question

drawbacks of mendeleev periodic table

Answer 1

position of hydrogen is not fixed till now, position of lanthanides and actinides have not been given inside the main body of the periodic table,it does not reflect the exact distribution of some of the transition and inner transition elements

Answer 2

✨QUESTION:- Drawbacks of Mendeleev's Periodic Table.

✔️ANSWER:-

⏩ No fixed position was given to hydrogen in the Periodic Table.

⏩ Isotopes were discovered long after Mendeleev had proposed periodic classification of elements. Isotopes of all elements posed a challenge to Mendeleev's Periodic Table.

⏩ Atomic mass do not increase in regular manner in going from one element to other.

✨✔️HOPE IT HELPS YOU....
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