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Question : Which of the following elements does not belong to group 1 of the modern periodic table?

Option 1: Sodium

Option 2: Radium

Option 3: Potassium

Option 4: Lithium


Team Careers360 6th Jan, 2024
Answer (1)
Team Careers360 12th Jan, 2024

Correct Answer: Radium


Solution : The correct answer is Radium .

  • The atomic number of Radium is 88 it belongs to group 2 of the periodic table.
  • The chemical elements lithium, sodium, potassium, rubidium, caesium and francium are present in group 1 of the periodic table. These elements make up the alkali metals.

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