The outer electronic configuration of radioactive element present in IA group is :

8 s^{1}

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7 s^{1}

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5 s^{1}

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6 s^{1}

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Solution

The correct option is A $7 s^{1}$
The radioactive element in group $1 A$ is francium $(F r)$ atomic number $87$ having electronic configuration $(R n) 7 s^{1}$ .

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Similar questions

V A

The outer electronic configuration of the element $M o (Z = 42)$ is:

n s^{2} n p^{4} (n = 2)

(n - 1) d^{2} n s^{2} (n = 5)

(i) [X e] {6 s}^{1}

(i i) [X e] {4 f}^{14}, {5 d}^{1} {6 s}^{2}

(i i i) [A r] {4 s}^{2} {4 p}^{3}

(i v) [A r] {3 d}^{7}, {4 s}^{2}

{n s}^{2} {n p}^{3}

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