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Question
consider the elements in this family (group) of the periodic table. because they are in the same family, what can you predict about these elements? a they are all about the same mass. b they are chemically reactive in a similar way. c the size of the atom decreases as you go down the column. d the elements change from metals to nonmetals as go down the column.
Los elementos de un mismo grupo (familia) de la tabla periódica tienen el mismo número de electrones en su capa de valencia, lo que determina su comportamiento químico. Las masas atómicas aumentan al descender el grupo, el tamaño atómico también aumenta, y la clasificación como metal/ no metal no sigue la tendencia de metal a no metal al descender. La propiedad común es su forma similar de reaccionar químicamente.
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B. They are chemically reactive in a similar way.