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The trends showing increase in ionization energy on the periodic table ~
- Ionization energy increases as we move from left to right in a period.
[ due to increase in effective nuclear charge ]
- Ionization energy increases as we move from bottom to top in a group.
[ Due to decrease in number of shells ]
Ionization energy increases across a period from left to right in the periodic table.
Ionization energy
Ionization energy is the energy needed for the complete removal of valence electrons in its ground state from an isolated atom in its gaseous phase at a specified temperature to form an ion.
Ionization energy shows periodicity in that it shows a regular variation across a period and down a group in the periodic table.
Ionization energy increases across a period from left to right in the periodic table.
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