Question

Electronic configuration of four elements are given in the table. Arrange these elements in the increasing order of their electronegativity

Answer 1

Explanation:

CASE I

• When the elements are in same group, then the electronegativity decreases when we go from top to bottom.
• Eg.- K, Na, Li, H (increasing order of electronegativity)

CASE II

• When the elements are in same period, then the electronegativity increases when we go from left to right.
• Eg.- Al, Si, P, S (increasing order of electronegativity)

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