Ionization energy
From Mass Spec Terms
| DRAFT DEFINITION | 
| Ionization energy | 
|---|
| The minimum energy required to remove an electron from an atom or molecule to produce a positive ion. | 
| 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
Orange Book
| ORANGE BOOK DEFINITION IUPAC. Analytical Division. Compendium of Analytical Nomenclature (the Orange Book). Definitive Rules, 1979 (see also Orange Book 2023) | 
| Ionization energy | 
|---|
| This is the minimum energy of excitation of an atom, molecule or molecular moiety M required to remove an electron in order to produce a positive ion. | 
| IUPAC 1997 Orange Book Chapter 12 | 
| Index of Orange Book Terms | 
