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Mathematics 16 Online
OpenStudy (anonymous):

According to periodic trend, which of the following most likely has the highest ionization energy? Na Al Si Ar

OpenStudy (anonymous):

electrons in the outer shell have the lowest ionization energy. (not even gonna consider the quantum model which does funny things with d-sublevel). Highest ionization energy in descending order is: Ar = 1520.6 Si = 786.5 Al = 577.44 Na 495.8

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