The correct order of electronegativity among the following options is:

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AIIMS BSc NURSING 2023 Memory-Based Paper

Answer 1

CONCEPT:

Electronegativity

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.
The electronegativity of an element is influenced by its atomic number and the distance at which its valence electrons reside from the charged nucleus.
In the periodic table, electronegativity generally increases across a period from left to right and decreases down a group.

EXPLANATION:

The given elements are nitrogen (N), phosphorus (P), arsenic (As), and antimony (Sb).
As we move down Group 15 in the periodic table, the electronegativity decreases due to the increasing atomic radius and shielding effect.
Therefore, the correct order of electronegativity from highest to lowest is:
- Nitrogen (N) has the highest electronegativity among the given elements.
- Phosphorus (P) comes next.
- Arsenic (As) follows phosphorus.
- Antimony (Sb) has the lowest electronegativity among the given elements.

Therefore, the correct order of electronegativity among the given options is N > P > As > Sb