Write periodicity of ionization enthalpy of 1 to 60 elements of period

1.	Write periodicity of ionization enthalpy of 1 to 60 elements of periodic table.
Answer» Solution :Generally IONISATION ENTHALPY means first IONIZATION enthalpy. The first ionization enthalpies of elements having atomic numbers up to 60 are plotted in figure. The periodicity of the graph is quite striking. You will find maxima at the noble gases which have CLOSED electron shells and very stable electron configurations. On the other HAND, minima occur at the alkali metals and their low ionization enthalpies can be correlated with their high reactivity. In period we go left to right ionization enthalpy increases. In group we go top to bottom ionization enthalpy decreases.

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