👉 Zirconium is a chemical element with the symbol Zr and atomic number 48. It is an element of the group 12, which includes elements from Group I (elements with atomic numbers from 1 to 16) through Group IV (elements with atomic numbers from 17 to 56). Zirconium is a transition metal that has several unique properties due to its position in the periodic table. It is often used in alloys and jewelry, as it is