57-71
89-103
Color and pattern coded by category. Symbol and atomic number shown for each element.
Periodic table of 118 elements arranged by atomic number in 7 periods and 18 groups. Each element shows its atomic number and chemical symbol. Elements are categorized as metal (solid blue), metalloid (green with diagonal stripes), or nonmetal (brown with dots). Lanthanides (elements 57 through 71) and actinides (elements 89 through 103) are shown in separate rows below the main table. Use Tab to move through elements and hear their name and category.
Categories follow standard US chemistry curriculum. Both color and pattern encode each category, so the table is usable without color perception. Tab through each element to hear its full name and category. Hover or focus any element to see its full name.