Physics, 22.03.2021 22:40 jmoreno486

An unknown element is solid at room temperature, forms a +2 ionic charge, and has 3 energy levels or shells. This element is most likely . * -Magnesium
-Lithium
-Boron
-Aluminum

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An unknown element is solid at room temperature, forms a +2 ionic charge, and has 3 energy levels or...