What chemical family of elements is absent from Mendeleev's table?

What elements fit into mendeleevs periodic table after his death

  • Answer:

    Hafnium (discovered in 1923) and rhenium (in 1925) were the last elements with stable nuclei to be added to the periodic table.

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Hafnium (discovered in 1923) and rhenium (in 1925) were the last elements with stable nuclei to be added to the periodic table.

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