➳ The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.
En = −13.6 × n2 / Z2 eV / atom
This formula is known as the ionization energy formula. Note that the IE is the same as the energy of the electron in the nth orbit but positive in sign. This is due to the fact that the energy is supplied to remove the electron and thus it has a positive sign.
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En = −13.6 × n2 / Z2 eV / atom
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➳ The ionization energy decreases from top to bottom in groups, and increases from left to right across a period. Thus, helium has the largest first ionization energy, while francium has one of the lowest.
En = −13.6 × n2 / Z2 eV / atom
This formula is known as the ionization energy formula. Note that the IE is the same as the energy of the electron in the nth orbit but positive in sign. This is due to the fact that the energy is supplied to remove the electron and thus it has a positive sign.
[tex] \pink{ \rule{190pt}{5pt}}[/tex]