Answer :
Final answer:
The periodic table organizes elements based on their atomic number and provides information about metals, nonmetals, and metalloids. The group number indicates the number of valence electrons, while the period number represents the number of occupied electron shells.
Explanation:
The periodic table organizes elements based on their atomic number, which is the number of protons in an atom's nucleus. Metals are located on the left side of the periodic table, while nonmetals are located on the right side. Metalloids are found along the staircase line that separates metals and nonmetals.
The group number of an element corresponds to the number of valence electrons it has. For example, elements in group 1 have 1 valence electron, elements in group 2 have 2 valence electrons, and so on. The period number of an element corresponds to the number of occupied electron shells it has. For example, elements in period 3 have 3 occupied shells, elements in period 4 have 4 occupied shells, and so on.
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