Question

Define the following !
1) Electron Negativity
2) Electron Affinity
3) Ionization Energy

Answer 1

1. Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.

2. Electron affinity of an atom or molecule is defined as the amount of energy released or spent when anelectron is added to a neutral atom or molecule in the gaseous state to form a negative ion.

3. Ionization energy is the energy required to remove an electron from a gaseous atom or ion.

Answer 2

electron negativity - electron negativity is a measure of an atom to attract a bonding pair of electron . the Pauling scale is the most
commonly used .

electron affinity -electron affinity is defined as the change in energy( in kj/mole) of a neutral atom (in the gaseous phase ) when an electron is added to the atom form a negative ion .

ionization energy - ionization energy is qualitatively defined as the amount of energy required to remove the most loosely bound electron , the valence electron v, of an isolated gaseous atom to form a cation