Most Electronegative element is:

F

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C s

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H e

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I

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Solution

The correct option is B $F$
Fluorine is the most electronegative element because it contains $5$ electrons in its $2 p$ shell. The optimal electron configuration of the $2 p$ orbital contains $6$ electrons. So since fluorine is so close to inert gas configuration the electron are held lightly to the nucleus.

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Similar questions

The most electronegative element is

Q. Assertion :

C s

and

F_{2}

undergo a violent reaction to form ionic compound

C s F

. Reason:

C s

is the most electropositive and

F

is the most electronegative.

Q. Assertion :

F_{3}

ion is known, which has same geometry as

X_{3} (X = C l, B r, I)

Reason: F is most electronegative element.

(g) From the elements given below name the following:
Li, Be, B, C, N, O, F, Ne.
(i) Most electronegative element.
(ii) Which element has highest electron affinity?
(iii) Most metallic element?
(iv) Which element has the largest size?
(v) Name the tetravalent element.

Q. Electronic configuration of most electronegative element is:

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Most Electronegative element is:

The correct option is B FFluorine is the most electronegative element because it contains 5 electrons in its 2p shell. The optimal electron configuration of the 2p orbital contains 6 electrons. So since fluorine is so close to inert gas configuration the electron are held lightly to the nucleus.