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Chemistry, 17.12.2020 06:40 softball2895
Among the groups of elements listed below, which have the same number of electrons in their outermost energy levels? C, K, Ca, Rb, Sr
Na, Mg, AI, S
Li, B,C, F
F, CI, Br, I
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Among the groups of elements listed below, which have the same number of electrons in their outermos...
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