A process whereby an electron is either removed from or added to a molecule producing an ion in the ground vibrational state of the resulting ion electronic state.
|Considered between 2004 and 2006 but not included in the 2006 PAC submission|
|This is an unofficial draft definition presented for information and comment.|
Orange Book Entry
A process whereby an electron is either removed from or added to the atom or molecule producing an ion in its ground state.