| 单词 | electron affinity |
| 释义 | electron affinity Symbol A. The energy change occurring when an atom or molecule gains an electron to form a negative ion. For an atom or molecule X, it is the energy released for the electron-attachment reaction X(g) + e → X-(g) Often this is measured in electronvolts. Alternatively, the molar enthalpy change, ΔH, can be used |
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