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Chemistry, 02.11.2020 07:30 Lalagrl

Am: [Rn]7s24f 7 [Rn]7s25f 7 [Rn]7s26f 7 [Rn]7s27f 7

answer is B

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Am: [Rn]7s24f 7 [Rn]7s25f 7 [Rn]7s26f 7 [Rn]7s27f 7

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