Define , 1 atomic radius , ionic radius , ionization enthalpy , electron gain enthalpy , electronegativity and valance
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Electronegativity - The tendency of an element to gain an electron to achieve fully filled outer shell configuration is called electronegativity.
Ionization energy - The energy required to remove an electron from the gaseous state of an isolated atom.
Electron gain enthalpy - The energy released when one mole of electrons are added to the gaseous state of an atom.
Ionic radius - The radius of an ion, that is the distance from its nucleus to the outer most shell is called ionic radius, the same distance in case of an is called atomic radius.
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