jmathematics7806
22.04.2021 •
Biology
Dadas las siguientes configuraciones electrónicas pertenecientes a 4 elementos neutros: A (1s2 2s2 2p2 ); B (1s2 2s2 2p5 ); C (1s2 2s2 2p6 3s2 3p6 4s1 ); D (1s2 2s2 2p4).
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