Question

what are the flaws in mordern periodic table?​

Answer 1

• No place for isotopes
• Hydrogen and Helium are not placed in their correct positions.

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Answer 2

1.Hydrogen resembles both the alkali metals and halogens But it has been placed with the alkalis. 2.The lanthanides and actinides have not been placed in the main body of the table. 3.Place of Multivalent elements is not sure in the modern periodic table.