For each atom in the table below, write down the subshell from which an electron would have to be removed to make a +1 cation, and the subshell to which an electron would have to be added to make a -1 anion. The first row has been completed for you. subshell from which electron subshell to which electron atom removed to form +1 cation added to form -1 anion H 1s 1s Na Хе Be

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