Question

Name two elements whose properties were predicted on the basis of their positions in Mendeleev's periodic table.

Answer 1

Gallium [Eka -Aluminium]  and Germanium[Eka- Silicon]
and Scandium[Eka Boron]
are the elements whose properties were predicted on the basis of their positions in Mendeleev Periodic table.

Answer 2

Answer:

gallium ,germanium,scandium