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Biology, 03.08.2019 13:00 blazepixi

How many valence electrons are in an atom with the electron configuration in example a? example a: 1s22s22p63s23p64s24p2 a: 22 b: 2 c: 4 d: 6

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How many valence electrons are in an atom with the electron configuration in example a? example a:...
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