Ionization energy from level n (hydrogenic) (IE_n = +13.6 Z²/n² eV (energy to remove electron from that level))
jee-advancedjee-mainneet-ug
IE_n = +13.6 Z²/n² eV (energy to remove electron from that level)
What each symbol means
| Symbol | What it stands for |
|---|---|
| Z | Atomic number |
| n | Principal quantum number of starting level |
| IE_n | Ionization energy from level n (positive quantity) |
When to use this
Energy needed to take electron from level n to infinity (0 eV); hydrogenic single-electron atom.