Get copper facts, including atomic data, uses, sources, and health effects of this metal. Copper is atomic number 29 with element symbol Cu.| Science Notes and Projects
This timeline and periodic table shows when the chemical elements were discovered. Usually, discovery means an element was isolated in pure form.| Science Notes and Projects
Get the abundance of elements in the Earth's crust periodic table and list. Discover facts about element abundance in the crust.| Science Notes and Projects