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Where are nonmetals located in the periodic table?

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Periodic table of the elements with color-coded categories and labeled element groups, showing atomic numbers, symbols, and basic information for each chemical element. — periodic table Modern version of the periodic table of the elements. To learn an element's name, atomic number, electron configuration, atomic weight, and more, select one from the table.

Nonmetals are primarily located in the upper right-hand corner of the periodic table.1

While this region contains the majority of nonmetallic elements, there is one notable exception: hydrogen, which is the only nonmetallic element found in Group 1 on the left side of the table. Additionally, elements classified as metalloids—which exhibit both metallic and nonmetallic properties—are situated along the dividing line between the metals and nonmetals.1

It is important to note that the classification of elements into metals and nonmetals is an approximation, as these categories represent a spectrum of chemical and physical behaviors rather than rigid divisions.1