1.

Define lonization enthalpy.

Answer»

Solution :The energy required to remove the most loosely held ELECTRON from an isolated gaseous ATOM is called as IONIZATION energy(i.e) `"Atom"_(("g"))+"Energy"to"Positive Ion"_(("g"))DIV"Electron"`
`"Li"_((g))+520" kJ mol"^(-1)to"Li"_((g))^(+)+e^(-)`


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