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323

Q:

Which element replaced eka aluminium according to Mendeleev’s periodic table?

  • 1
    Boron
  • 2
    Geranium
  • 3
    Gallium
  • 4
    Sodium
  • Show Answer
  • Workspace

Answer : 3. "Gallium "
Explanation :

In 1871 Mendeleev predicted the existence of a yet-undiscovered elements and left gap for these in his periodic table. He named one of the element as eka-aluminium because of its proximity with the properties of aluminium. Later this gap was filled by gallium.

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