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Chemistry, 06.11.2020 17:10 estefaniapenalo
Among the groups of elements listed below, which have the same number of electrons in their outermost energy levels?
O NP. As, Sb
None of these
OK, Ca, Rb, Sr
OLI, B, C F
O Na Mg, ALS
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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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