How do you calculate the ionization energy of He+?

1 Answer
Feb 4, 2018

Do I have to? It has already been done by many a physical chemist and been given the name "Rydberg Constant".

${R}_{H} = \Delta {H}_{I E} \left(\text{H}\right)$

$=$ $\text{13.61 eV}$

$= \Delta {H}_{I E} \left({\text{He}}^{+}\right)$

Why can I say this? How many electrons does ${\text{He}}^{+}$ have?