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GK QUESTION#3294

To which group do the alkaline earth metals such as radium, barium and strontium belong?

  1. AGroup 5A
  2. BGroup 2ACorrect answer
  3. CGroup 1A
  4. DGroup 3A
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Answer

B. Group 2A

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Explanation

Radium, barium and strontium are alkaline earth metals in modern Group 2. In the older A-group notation used by the options, this is Group 2A or IIA. The same group also contains beryllium, magnesium and calcium.

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