40 Zr 91.224
Zirconium
transition metal
Properties
- Atomic number
- 40
- Atomic mass
- 91.224 u
- Category
- transition metal
- Group
- 4
- Period
- 5
- Block
- d-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.33 (Pauling)
- Density
- 6.52 g/cm³
- Melting point
- 1854.85 °C
- Boiling point
- 4376.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d²
Noble-gas shorthand: [Kr] 4d² 5s²
Electrons per shell: 2, 8, 18, 10, 2, which is 2 in the outermost shell.
Related: electron configuration, the Bohr model, valence electrons.
About Zirconium
Zirconium is a chemical element with symbol Zr and atomic number 40. The name of zirconium is taken from the name of the mineral zircon, the most important source of zirconium. The word zircon comes from the Persian word zargun زرگون, meaning "gold-colored".
- Discovered by Martin Heinrich Klaproth
- Appearance: silvery white
Zirconium: frequently asked questions
- What is Zirconium?
- Zirconium (Zr) is the chemical element with atomic number 40. It is a metal: specifically a transition metal.
- What is the atomic number of Zirconium?
- Zirconium's atomic number is 40, which means every Zirconium atom has 40 protons in its nucleus.
- What is the electron configuration of Zirconium?
- The electron configuration of Zirconium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2 (noble-gas shorthand: [Kr] 4d2 5s2). Its electrons are arranged in shells of 2, 8, 18, 10, 2, with 2 in the outermost shell.
- Is Zirconium a metal or a nonmetal?
- Zirconium is a metal: specifically a transition metal.
- What group and period is Zirconium in?
- Zirconium is in group 4 and period 5 of the periodic table.
- Is Zirconium a solid, liquid, or gas?
- At room temperature, Zirconium is a solid.
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.