Which group is having heighest ionization energy?
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the group 18 ie of noble gases which includes
He,Ne,Ar,Kr,Xe,Rn
has highest ionisation energy due to completely filled outer shells.
rakesh58450:
group 18 elements have the highest ionisation energie becaues they have noble gas configurations due to which high amount of energies have to be given to eject out a electron from the outermost shell
1st group elements have the lowest ionisation energies because theh have the largest radius among all other groups due to which nuclear attraction on the outermost electron is min. among all other groups
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i read the question wrong
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ionisation energy of an element depends upon the strength with which the electron to be removed is bound to the nucleus. thus the ionisation energy of an element depends upon its location in the periodic table. therefore there is no particular group which have highest ionisation energy.
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