Ionization Energies
The stability of valene elections
In the atons i onization energies
valene ectors is relected direc
Fonization energy is the minum amount or energ
atom in its ground State
required to remove
an eledron from a gaseous
ther higher ionization energy = difficult to remove
electron
Firt ionization energy equation:
•Trends across the periodi
energy absorbed by atons or ions in
ion Ization process has a tre value
lonization energies of elements increase with
increasing atomic number
explained by a increase in muleur charge (rom left
to right on for table
larger ettective nuclear charge means tightly held
oute elections theretore higher ionzation energy
-Group /A
elements
have
election is effectively shielded