November 2021 1 6 Report
какова конфигурация электронных слоев атома в возбужденном состоянии?
А) ls^2 2S^2 2P^6 3S^3 3P^3
Б) ls^2 2S^2 2P^6 3S^2 3P^6 4S^2
В) ls^2 2S^2 2P^6
Г) ls^2 2S^2 2P^6 3S^2 3P^6
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