Practice: Which of the following represents the third electron affinity of Si?
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| The Electron Configuration | 18 mins | 0 completed | Learn Summary |
| The Electron Configuration: Condensed | 4 mins | 0 completed | Learn |
| The Electron Configurations: Exceptions | 13 mins | 0 completed | Learn |
| The Electron Configuration: Ions | 12 mins | 0 completed | Learn |
| Paramagnetism and Diamagnetism | 9 mins | 0 completed | Learn Summary |
| The Electron Configuration: Quantum Numbers | 16 mins | 0 completed | Learn |
| Valence Electrons of Elements | 13 mins | 0 completed | Learn |
| Periodic Trend: Metallic Character | 4 mins | 0 completed | Learn |
| Periodic Trend: Atomic Radius | 11 mins | 0 completed | Learn |
| Periodic Trend: Ionic Radius | 13 mins | 0 completed | Learn Summary |
| Periodic Trend: Ionization Energy | 12 mins | 0 completed | Learn Summary |
| Periodic Trend: Successive Ionization Energies | 9 mins | 0 completed | Learn |
| Periodic Trend: Electron Affinity | 8 mins | 0 completed | Learn Summary |
| Periodic Trend: Electronegativity | 5 mins | 0 completed | Learn |
| Periodic Trend: Effective Nuclear Charge | 20 mins | 0 completed | Learn |
| Periodic Trend: Cumulative | 13 mins | 0 completed | Learn |
Electron Affinity is the energy released from the addition of an electron to a gaseous atom or ion.
Electron Affinity
Concept #1: Periodic Trend: Electron Affinity
Concept #2: Periodic Trend
Generally, electron affinity increases moving from left to right across a period and going up a group.
Example #1: Which of the following halogens will have the most exothermic electron affinity?
Concept #3: Exceptions to Electron Affinity
Practice: Determine which atom in the following set has the most exothermic electron affinity: N, O, C, B, Ne
Practice: Rank the following elements in order of increasing electron affinity: Cs, Hg, F, S
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Videos in Periodic Trend: Electron Affinity
Concept #1: Periodic Trend: Electron Affinity
Concept #2: Periodic Trend: Electron Affinity
Example #1: Periodic Trend: Electron Affinity Example 1
Concept #3: Periodic Trend: Electron Affinity
Practice #1: Periodic Trend: Electron Affinity Practice 1
Practice #2: Periodic Trend: Electron Affinity Practice 2
Practice #3: Periodic Trend: Electron Affinity Practice 3
