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Chemistry, 06.05.2020 05:59 prynnie

An atom has 2 electrons in the first energy level, 8 in the second energy level, and 1 electron in the third energy level. The number of the core electrons is...


An atom has 2 electrons in the first energy level, 8 in the second energy level, and 1 electron in t

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An atom has 2 electrons in the first energy level, 8 in the second energy level, and 1 electron in t...
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