ShellyD ShellyD

14-12-2016
Chemistry

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by what two characteristics are all the elements of the periodic table placed in

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kaylamalone9228 kaylamalone9228

14-12-2016

They are arranged by atomic number and valence shells. They go from left to right in increasing atomic number until the valence shell is filled with electrons. Then it starts again at a new row

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14-12-2016

They are lined up my periods and groups and they have different sections non-metal,metal,and metalloids

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