Identify the element having general electronic configuration $\mathrm{ns}^1$ from following.

Identify the element having general electronic configuration $\mathrm{ns}^1$ from following.
  1. $\mathrm{Ca}$
  2. $\mathrm{Sr}$
  3. $\mathrm{Ba}$
  4. $\mathrm{Fr}$

Solution

The general electronic configuration $\mathrm{ns}^1$ is of group 1 elements. Among the given elements, francium $(\mathrm{Fr})$ belongs to group 1 .

Asked in: MHT CET 2023 (11 May Shift 2)

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