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In Mendeleev ’s Periodic Table, gaps were left for the elements to be discovered later. Which of the following elements found a place in the perioidc table later (a) Germanium (b) Chlorine (c) Oxygen Silicon

ScienceClass 10CBSEAnswered 27 Mar 2026
Answer
  • Soln:

Answer is (a) Germanium

Explanation:

Mendeleev name unnamed elements as EKA- Boron EKA- Aluminium and EKA Silicon which were later replaced as Scandium, Gallium, and germanium respectively.

Science · Class 10