Atomic NumberAtomic Number of Zirconium
Atomic Number of Zirconium is 40.
Chemical symbol for Zirconium is Zr. Number of protons in Zirconium is 40. Atomic weight of Zirconium is 91.224 u or g/mol. Melting point of Zirconium is 1852 °C and its the boiling point is 4377 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Zirconium
Zirconium is a metal of light grey or gold-like color, which is very resistive to corrosion and is non-toxic. It occurs naturally on our planet in about two dozens of mineral types like baddeleyites. This chemical element got its name from Arabic word meaning gold-like looking, and it was known and used in ancient Egypt for producing jewelry. Zirconium in its pure form is important in nuclear power production, and its high resistance to corrosion is used in various industries. Zirconium oxide has applications in ceramic and glass producing industries. Natural pure zirconium is considered to be a semi-precious stone and is used for producing decorations or jewelry.
Properties of Zirconium Element
| Atomic Number (Z) | 40 |
|---|---|
| Atomic Symbol | Zr |
| Group | 4 |
| Period | 5 |
| Atomic Weight | 91.224 u |
| Density | 6.506 g/cm3 |
| Melting Point (K) | 2128 K |
| Melting Point (℃) | 1852 °C |
| Boiling Point (K) | 4682 K |
| Boiling Point (℃) | 4377 °C |
| Heat Capacity | 0.278 J/g · K |
| Abundance | 165 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Transition metal |
| Electronegativity (Pauling) χ | 1.33 |
| Ionization Energy (eV) | 6.6339 |
| Atomic Radius | 155pm |
| Covalent Radius | 148pm |
| Valence Electrons | 2 |
| Year of Discovery | 1789 |
| Discoverer | Klaproth |