Which of the following would you expect to have highest electronegativity?
A
Mg (Z=12)
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B
S (Z=16)
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C
B (Z=5)
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D
Te (Z=52)
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Solution
The correct option is B S (Z=16) As sulphur needs only 2 electrons to get octet configuration, it is more electronegative than other atoms as others are more electropositive metals and non-metal.