Question

In Mendeleev’s periodic table eka- silicon was later named as ______.

विकल्प

• scandium

• gallium

• germanium

• thorium

Answer 1

In Mendeleev’s periodic table eka- silicon was later named as germanium.

Explanation:

Mendeleev predicted the existence and properties of several unknown elements to fill the gaps in his periodic table. He named these elements using the prefix “eka-” (Sanskrit for “one”) followed by the name of the element appearing above it in the same group. Specifically:

• Eka-boron was later named Scandium.
• Eka-aluminium was later named gallium.
• Eka-silicon was later named Germanium.