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Classification of Elements and Periodicity in Properties
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23/08/2021 12:57 pm
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The correct order of decreasing electronegativity values among the elements I-beryllium, II-oxygen, III-nitrogen and IV-magnesium is
(a) II > III > I > IV
(b) III > IV > II > I
(c) I > II > III > IV
(d) I > II > IV > III
1 Answer
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23/08/2021 1:03 pm
Correct answer: (a) II > III > I > IV
Explanation:
Electronegativity values of given elements are as follows:
Be – 1.5 (I)
Mg – 1.2 (IV)
O – 3.5 (II)
N – 3.0 (III)
i.e. II > III > I > IV