Mendeleev predicted the existance of two elements and named them as Eka-silicon and Eka-aluminium
a) Name the elements which took over their position in later stage
b) predict the valencies of these elements
c) write down their oxides formula
give detailed answer plzz...!!!
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Answer:
a) Eka silicon is germanium
Eka aluminium is gallium
b) Ge valency 4
Ga valency 3
c)GeO2
Ga2O3