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group 13 period 3 element, group 14 period 3 element, group 15 period 3 element, group 13 period 4 element, which element is in period 3 group 13, what element is located in group 13 period 3, what element is in group 13 period 3, which element is found in group 13 period 3, what element is in group 13 and period 3
