[" Eka-aluminium and Eka-silicon are "],[" known as "]

Eka-aluminium is

Eka-aluminium is

Eka aluminium is :

Assertion (A): Mendeleev left the gap under aluminium and silicon and called these Eka-aluminium and Eka-silicon, respectively. Reason (R): Dobereiner arranged elements on the basis of increasing atomic number.

Directions: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as : Assertion (A) : Mendeleev' left the gap under aluminium and silicon and called these Eka-aluminium and Eka-silicon, respectively. Reason (R) : Dobereiner arranged elements on the basis of increasing atomic number.

Identify the elements eka-aluminium and eka-silicon. What wa the reason for such naming?

Eka silicon is now known as