πŸ“Š General Science
Q. Which among the following were not discovered by the time , Mendeleev published his periodic table?
  • (A) Lathanides
  • (B) Actinides
  • (C) Noble Gases
  • (D) Halogens
πŸ’¬ Discuss
βœ… Correct Answer: (C) Noble Gases

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