Question

The outermost electronic configuration of the most electronegative element is

• A. $ns^2 \, np^3$
• B. $ns^2 \, np^4$
• C. $ns^2 \, np^5$
• D. $ns^2 \, np^6$

Answer 1

Answer: (C)

$ns^2 \, np^5$

Answer 2

The correct answer is Option C) $ns^2 \, np^5$

Fluorine, a halogen, is the most electronegative atom, has the electronic configuration $2s^2 \, 2p^5$ (valence shell).

Electronegativityrefers to the tendency of attracting electrons.

The electronic configuration of the most electronegative element is ns2np5. As after an electron is gained, the element becomes more stable.
Fluorine, with atomic number 9, is the most electronegative element. Its electronic configuration is 1s22s22p5.

Therefore the correct answer is Option C.

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