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Q.

Which of the following elements has highest electronegativity?


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a

Al

b

S

c

Si

d

P 

answer is B.

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Detailed Solution

The elements are present in 3rd period in the periodic table.On moving across the time from left to right ,the electronegativity increases , since  the elements on the right side of the periodic table have more tendency to attract the electron in a bond so as to complete their valence shell of 8 electrons.Therefore, S is the most electronegative element.
 
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