what is ionization energy.write its variation in periodic table
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Answer:
The energy to remove an most losely electron from it's isolated gaseous atom to convert in it's cation is called ionization energy.
Explanation:
Simply it's mean the energy required to remove an electron.
As we move left to right nuclear charge increase so it's difficult to remove electron and hence Ionization energy increase.
Down the group no.of shells increase so the ionization energy decrease.
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