Easy
Besides gallium,which other elements have since been discovered that were left by Mendeleev in his Periodic Table? (any two)
(N/A) Mendeleev predicted the existence of several elements that had not been discovered at that time. He named them Eka-boron,Eka-aluminium,and Eka-silicon. These were later discovered and named as Scandium $(Sc)$,Gallium $(Ga)$,and Germanium $(Ge)$ respectively. Therefore,besides Gallium,the other two elements are Scandium and Germanium.
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