Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-Silicon and Eka-Aluminium.
What is the group and the period of these elements in the Modern Periodic Table.

Eka-Silicon (Germanium) - Group 13; Period 4

Eka-Aluminium (Gallium) - Group 14; Period 4

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Eka-Silicon (Germanium) - Group 14; Period 4
Eka-Aluminium (Gallium) - Group 13; Period 4

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Eka-Silicon (Germanium) - Group 15; Period 4

Eka-Aluminium (Gallium) - Group 16; Period 4

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Eka-Silicon (Germanium) - Group 17; Period 4
Eka-Aluminium (Gallium) - Group 18; Period 4

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Solution

The correct option is B
Eka-Silicon (Germanium) - Group 14; Period 4
Eka-Aluminium (Gallium) - Group 13; Period 4

Eka-Silicon (Germanium) - Group 14; Period 4 as it comes just before silicon it was named as Germanium.
Eka-Aluminium (Gallium) - Group 13; Period 4 as it comes just before silicon it was named as Gallium.

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Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-Silicon and Eka-Aluminium. What is the group and the period of these elements in the Modern Periodic Table.

Mendeleev predicted the existence of certain elements not known at that time and named two of them as Eka-Silicon and Eka-Aluminium.
What is the group and the period of these elements in the Modern Periodic Table.