Periodic Trend: Ionization Energy Video Lessons

Concept: Ionization Energy (IE)

# Problem: Ground-state ionization energies of some one-electron species are:H = 1.31 x 10 3 kJ/mol               He  + = 5.24 x 10 3 kJ/mol               Li   2+ = 1.18 x 10 4 kJ/molWrite a general expression for the ionization energy of any one-electron species.

###### FREE Expert Solution

The expression for the energy of an electron is:

$\overline{){{\mathbf{E}}}_{{\mathbf{n}}}{\mathbf{=}}\mathbf{\left(}\mathbf{-}\mathbf{2}\mathbf{.}\mathbf{18}\mathbf{×}\mathbf{10}\mathbf{-}\mathbf{18}\mathbf{\right)}{{\mathbf{Z}}}^{{\mathbf{2}}}\mathbf{\left[}\frac{\mathbf{1}}{{\mathbf{n}}^{\mathbf{2}}}\mathbf{\right]}}$

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###### Problem Details

Ground-state ionization energies of some one-electron species are:

H = 1.31 x 10 3 kJ/mol               He  + = 5.24 x 10 3 kJ/mol               Li   2+ = 1.18 x 10 4 kJ/mol

Write a general expression for the ionization energy of any one-electron species.