Question

What is electronegativity? How is it different from electron affinity?

Answer 1

Electronegativity is a measure of ability of an atom in a molecule to draw bonding electrons to itself.

Electron affinity is different from electronegativity as the energy changes when an electron is added to a neutral atom to form a negative ion.

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Answer 2

Ionization energy: the energy required to remove an electron from a neutral atom. Electron affinity: the energy change when a neutral atom attracts an electron to become a negative ion. Electronegativity: the ability of an atom in a molecule to draw bonding electrons to itself.