Electron Affinity and Noble Gases
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These flashcards cover the concept of electron affinity, focusing on the unique behavior of noble gases.
Last updated 12:56 AM on 11/20/25
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4 Terms
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Electron Affinity
The amount of energy released or absorbed when an electron is added to a neutral atom.
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Endothermic Process
A process that absorbs heat from the surroundings.
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Noble Gases
Group 18 elements in the periodic table, known for their lack of reactivity due to a full valence shell.
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Why are electron affinity values for noble gases endothermic?
Because noble gases have a complete valence shell, adding an electron would require energy to overcome the repulsion between the negatively charged electron and the already present valence electrons.
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Flashcards (32)