Appearance energy

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DRAFT DEFINITION
Appearance energy

The minimum energy that must be imparted to an atom, molecule or molecular moiety in order to produce a specified ion X+. The term 'appearance potential' is not recommended.

Considered between 2004 and 2006 but not included in the 2006 PAC submission
This is an unofficial draft definition presented for information and comment.

Recommended terms | Full list of terms


Orange Book Entry

The minimum energy that must be imparted to an atom, molecule, radical or other molecular entities to produce a specified ion. The term 'appearance potential' is not recommended.