Factors affecting electron affinity: 1.Effective nuclear charge : more is the nuclear charge, more is the attraction for extra electron, more is the amount of energy released and hence more will be the electron affinity. 2.Atomic size: small is the size of atom, more is the attraction forextra electron and hence more will be electron affinity. 3.Electronic configuration: elements having half filled and fully filled configuration are very stable so that have little tendency to except electron or no tendency to except extra electron. so they have very low value of electron affinity or zero electron affinity. Question /Answer 1.Electron affinity of noble gases is zero? ans because of more stability of completely filled valence shell they have no tendency to gain electron hence electron affinity of noble gases are zero. 2.Nitrogen and phosphorus have low value of electron affinity? ans N (7) 1s^2 2s^2 2p^3 P (15) 1s^2 2s^2 2...
inorganic chemistry inorganic chemistry, atomic structure, periodic properties, covalent bond ,ionic bond, orbital, shape of orbital, numericals, dual nature wave nature bohr's postulates, hinesberg principal, quantum numbers, pauli exclusive principal, aufbau principal, limitation, electronic configuration of lanthanoids and transition elements, screening effect, shielding effect, slater rule and it's limitation.