Which of the following elements was predicted by Mendeleev before discovery?

Name: Which of the following elements was predicted by Mendeleev before discovery?
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Mendeleev's periodic table had gaps in it, which he predicted were new elements. Ge (Germanium) was predicted as eka-silicon, Ga (Gallium) was predicted as eka-aluminium and Sc (Scandium) was predicted as ekaboron. All three elements were later discovered and found to have properties close to what Mendeleev had predicted.

Which of the Following Elements Was Predicted by Mendeleev Before