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40 - Zirconium transition metal

Discovered by Martin Klaproth in 1789

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".
Shell Electrons Orbitals
1 2 2 in 1s
2 8 2 in 2s + 6 in 2p
3 18 2 in 3s + 6 in 3p + 10 in 3d
4 10 2 in 4s + 6 in 4p + 2 in 4d
5 2 2 in 5s
ZirconiumZr Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 11 Electron 12 Electron 13 Electron 14 Electron 15 Electron 16 Electron 17 Electron 18 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 10 Electron 1 Electron 2
91.22  u Atomic Mass
2.2  Å Atomic Radius
4682  K Boiling Point
1.75  Å Covalent Radius
6.52  g/cm³ Density
41.81 Electron Affinity
1.33 Electronegativity
6.63  eV First Ionization Energy
2125.15  K Melting Point
5 Number of Shells
40 Atomic Number
2, 8, 18, 10, 2 Electron Shell Occupations