In the periodic table, an element is defined by its vertical group and horizontal period. Each period, numbered one through seven, contains elements of increasing atomic number. … Each group contains several elements that have similar physical properties due to their underlying atomic structure.
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Answer:
In the periodic table, an element is defined by its vertical group and horizontal period. Each period, numbered one through seven, contains elements of increasing atomic number. … Each group contains several elements that have similar physical properties due to their underlying atomic structure.
Explanation:
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