The diagram shows two early attempts at the periodic table. In both cases elements with similar properties tend to be found in the same... what?
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Each element within a group has similar physical or chemical properties because of its atom's outermost electron shell (most chemical properties are dominated by the orbital location of the outermost electron).
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Answer: Group/Column
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In Group VIII of the first image, period 4, Fe, Co, Ni, Cu are in the same column and group. In the second image, those previously mentioned elements are no longer in the same place, there giving the answer as the "same group and column".
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