# Electronegativity

Bonding: Electronegativity

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## Key Questions

$\text{Electronegativity is conceived to be the ability......}$

#### Explanation:

Electronegativity is conceived to be the ability of atom involved in a chemical bond to polarize electron density towards itself. There are various scales, of which the Pauling scale was the earliest, and it is still most widely used. Pauling originally based his scale on ionization energies, and electron affinities. He then normalized the scales so that they gave values roughly between $0 - 4$.

Electronegativity is known to increase across a Period, from left to right across the Table (ignoring the Noble Gases), and DECREASE down a Group. And thus nitrogen, oxygen, and fluorine are the more electronegative atoms.

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