The Periodic Table of Elements
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40
Zr
Zirconium
Summary
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".
Block: d
Period: 5
Group: 4
Atomic Mass: 91.224 g/mol (amu)
Discovered By: Martin Heinrich Klaproth
Phase: Solid
Boiling Point: 4650 K
Melting Point: 2128 K
Type: transition metal
Density: 6.52 g/cm3
Electron Configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d2
Electron Configuration (Semantic): [Kr] 4d2 5s2