Give four defects of Mandeleev's periodic table.

Give four defects of Mendeleev's periodic table.

Give four defects of 'Mendeleev's periodic table.

Give three defects of mendeleev's periodic table.

Mention two defects of Mendeleev's periodic table.

State two defects in Mendeleev's periodic table.

State the law on the basis of which Mendeleev classified the elements. Mention the important features of his periodic table. What are the merits and defects of Mendeleev's periodic table ?

Give any two features of Mendeleev's periodic table.

Give any two features of Mendeleev's periodic table.

Which defect of Mandeleeff's periodic table is automatically overcome by shifting the basis from atomic number ?

Point out the major defects in the mendeleev's periodic table?