Which of the following statement is true regarding the electronegativity values of Sodium and Chlorine?

Electronegativity of Sodium is three times that of Chlorine

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Electronegativity of Sodium is less than that of Chlorine

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Electronegativity of Sodium is equal to that of Chlorine

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Electronegativity of Sodium is twice that of chlorine

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Solution

The correct option is B
Electronegativity of Sodium is less than that of Chlorine

Electronegativity is the ability of an atom to attract the bonded electrons. It is inversely proportional to the atomic size.

Sodium is a first group element and chlorine is a halogen(Group 17 element). As we move from left to right of the periodic table, the atomic radius reduces thus the electronegativity value increases.

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Similar questions

Rewrite the following sentences by using the correct symbol > (greater than) or < (less than) in the blanks given :

(1) The ionization potential of Potassium is ________ that of Sodium.
(2) The electronegativity of Iodine is ________ that of Chlorine.

Choose the words which correctly completes the following statements:

The element below sodium in the same Group would be expected to have a (A) electronegativity than sodium and the element above chlorine would be expected to have a (B) ionization potential than chlorine.

Q. Electronegativity of fluorine is greater than that of chlorine but electron affinity of chlorine is greater than that of fluorine.

Q. Even though electronegativity of chlorine is equal to that of nitrogen, chlorine is unable to form hydrogen bonds. It is due to the fact that:

Q. Assertion :

F_{2}

has higher bond energy than the

C l_{2}

. Reason: Electronegativity of fluorine is more than that of chlorine.

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