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Energetics I
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Total cards: 3•Content version: v4•Public deck•Updated: 8/1/2026
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#1
Front (Question)
why is 1st electron affinity exothermic (-ve) ? EA: gaseous atomes acquire e-
Back (Answer)
attraction between nucleus of X atom and added e- is more than repulsion b/w e- and newly added e- see the exact definitions on this in notes
#2
Front (Question)
why is 2nd electron affinity exothermic (+ve) ?
Back (Answer)
energy is required to overcome repulsion when e- is added to negatively charged X ion
#3
Front (Question)
Back (Answer)