The element "Eka-aluminium" predicted by Mendeleev was later discovered as

Gallium

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Helium

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Scandium

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Calcium

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Solution

The correct option is A Gallium
While forming the periodic table, Mendeleev left few spaces for the elements yet to be discovered whose properties where predicted by him. He named them with the prefix "Eka" followed by the element showing closest similarity in its properties. Eka-aluminium was one among his predictions which has properties similar the element gallium, which was discovered later.

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Similar questions

Q. The properties of eka-boron predicted by Mendeleev have similar properties to the element _______, which was discovered later.

Eka aluminium predicted by Mendeleev is which element?

The three elements predicted by Mendeleev from the gaps in his periodic table were known as eka-boron, eka-aluminium and eka-silicon. What names were given to these elements when they were discovered later on?

Q. Mendeleev predicted the existence of certain elements not known at that time and named as Eka-aluminiumT he elements which have taken the place of Eka-aluminium is :

The correct formula of the oxide of Eka-aluminium element predicted by Mendeleev was :

(a) $E a O_{3}$ (b) $E a_{3} O_{2}$ (c) $E a_{2} O_{3}$ (d) $E a O$

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