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Electron affinity, EA, is the energy required to add an electron to a neutral gaseous atom and is related to an element's position on the periodic table. Electron affinities can be positive, negative, or zero, as shown in the table.
Element Electron affinity
(kJ/mol) N (nitrogen) >0 F (fluorine) â328 Ca (calcium) â2
1. Rank the following elements by electron affinity, from most positive to most negative EA value: Ar, I, Rb, P, O.
Electron affinity, EA, is the energy required to add an electron to a neutral gaseous atom and is related to an element's position on the periodic table. Electron affinities can be positive, negative, or zero, as shown in the table.
| Element | Electron affinity (kJ/mol) |
| N (nitrogen) | >0 |
| F (fluorine) | â328 |
| Ca (calcium) | â2 |
1. Rank the following elements by electron affinity, from most positive to most negative EA value: Ar, I, Rb, P, O.
Nelly StrackeLv2
26 Apr 2019
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