Question

what are the drawbacks of the long form periodic table?

Answer 1

Drawbacks of the long form of periodic table:
1) The position of hydrogen is not justified. It resembles alkali metals and halogens both but it is placed with alkali metals.
2) There is no place for isotopes.
3) f-block that is lanthanides and actinides have not been placed in the main body of the periodic table.