Question 47(a)
Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-Silicon and Eka-Aluminium.

Name the elements which have taken the place of these elements.

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Solution

Mendeleev assigned names eka-silicon and eka-aluminium to germanium (Ge) and gallium (Ga) respectively. These elements were predicted by Mendeleev but were not known at that time.

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Question 47(a) Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-Silicon and Eka-Aluminium. Name the elements which have taken the place of these elements.

Mendeleev assigned names eka-silicon and eka-aluminium to germanium (Ge) and gallium (Ga) respectively. These elements were predicted by Mendeleev but were not known at that time.

Question 47(a)
Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-Silicon and Eka-Aluminium.

Name the elements which have taken the place of these elements.