7.3 Electron Affinity & Electronegativity
CHECK OUT CHAD'S
PRE-HEALTH PREP
PRE-HEALTH PREP
Table of Contents
Add a header to begin generating the table of contents
Electron Affinity
Energy change for gaining an electron
Successive Electron Affinities
The 1st electron affinity for most elements is negative, but any additional successive electron affinities are always positive.
| Electron Affinities of Oxygen | |
|---|---|
| O(g) + e- ➔ O-(g) | E.A.1 = -141 kJ/mol |
| O-(g) + e- ➔ O2-(g) | E.A.1 = +744 kJ/mol |
Electronegativity
