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Chemistry, 04.12.2019 13:31 LadyHolmes67
What is the number of electrons in a completely filled second shell of an atom? (1) 32 (2) 2 (3) 18 (4) 8
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What is the number of electrons in a completely filled second shell of an atom? (1) 32 (2) 2 (3) 18...
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