Chromium

periodic table · metal · shiny

Element number 24. Chromium is the 24th element on the periodic table, which is like the periodic table's address for this metal. Its symbol is Cr, which scientists use as a shorthand way to write it.

Steely and lustrous. Chromium is a hard, brittle metal that looks steely grey and shines like polished silver when it's clean. It's so shiny that people use it to coat other metals to make them gleam.

Super strong and tough. This metal is incredibly hard and strong, which is why it gets used to make other materials tougher and longer-lasting. When mixed with other metals, chromium can make them resist rust and scratches.

Transition metal. Chromium belongs to a special group of metals called transition metals that sit in the middle section of the periodic table. These metals are known for being strong, shiny, and able to form colorful compounds.

Makes brilliant colors. Chromium creates some of the most vibrant colors in chemistry, like emerald green and ruby red. These colorful compounds have been used for centuries in paints, dyes, and gems.