what are diffenence between electron effinity and electron negativity 
and
what are the difference between paullis principle and aufbau s principle

Asked by pannalal.malakar | 22nd Jul, 2014, 05:27: PM

Expert Answer:

Dear pannalal.malakar@gmail.com

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Solution for your first query,

Electronegativity is the ability of molecule to attract an electron of the covalent bond. It deals with atoms in a molecule and their tendency to attract bonding pair of electrons.

Electron affinity is the amount of energy released when an electron is gained by some atom. It deals with an isolated atom.

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Topperlearning Team.

Answered by Prachi Sawant | 23rd Jul, 2014, 10:36: AM