Why elements of group 1 and group 2 are known as s-block elements?

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1 Answers

  • The subshell in which the last electron enters decides the block to which an element belongs.
  • In group 1 and group 2 elements, the last electron is filled in the s subshell.

Therefore, the elements of group 1 and group 2 are known as s-block elements.

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