The energy released while accepting an electron by a neutral atom

The energy released while accepting an electron by a neutral atom is called electron affinity.

The attraction of an atom for an electron

The attraction of an atom for an electron is called electron affinity.

the ability of an atom to gain an incoming electron

Electron affinity is the ability of an atom to gain an incoming electron.

a change in energy

When an electron is added to a gaseous atom, a change in energy is observed called electron affinity.

the energy change that accompanies the addition of an electron

Electron affinity is the energy change that accompanies the addition of an electron.

the energy change that occurs when an electron is added to a gaseous atom to give an anion

The electron affinity (EA) of an element is the energy change that occurs when an electron is added to a gaseous atom to give an anion.

to an isolated gaseous atom to form the negative ion (anion)

Electron affinity is the energy released when an electron is added to an isolated gaseous atom to form the negative ion (anion).

energy

Electron affinity is a real energy but electronegativity is an empirically derived parameter but electronegativity ’s not an energy.

as the change in energy (in kJ/mol) of a neutral atom (in the gaseous phase) when an electron is added to the atom to form a negative ion

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

a measure of the energy change

The electron affinity is a measure of the energy change when an electron is added to a neutral atom to form a negative ion.

a measurable physical quantity, namely, the energy released or absorbed when an isolated gas-phase atom acquires an electron, measured in kJ/mol

The electron affinity of an element is a measurable physical quantity, namely, the energy released or absorbed when an isolated gas-phase atom acquires an electron, measured in kJ/mol.

as the amount of energy released per mole

The electron affinity is defined as the amount of energy released per mole when an electron is added to a neutral atom.

the amount of energy released or absorbed

Electron affinity is the amount of energy released or absorbed when an atom in gaseous state accepts an electron to form an anion (not necessarily an anion