short note on electron gain enthelpy
Answers
Answer:
Electron gain enthalpy of an element is the energy released when a neutral isolated gaseous atom accepts an extra electron to form the gaseous negative Ion i.e. anion. We can denote it by Δ egH. Greater the amount of energy released in the above process, higher is the electron gain enthalpy of the element.
Answer:
Electron gain enthalpy is defined as the amount of energy released when an electron is added to an isolated gaseous atom. ... During the addition of an electron, energy can either be released or absorbed.
Noble gases have large positive electron gain enthalpy. This is because the extra electron is placed in the next higher principal quantum energy levels. Thus, a highly unstable electronic configuration is produced
Factors affecting electron gain enthalpy The magnitude of electron gain enthalpy depends on a number of factors such as: (i) Size of the atom: Smaller the size of the atom, stronger is the attraction for the added electron towards nucleus. Thus, smaller the size of atom, greater is the electron gain enthalpy.