40Zr
Element 40
Zirconium
Transition metals
Zirconium is a chemical element with symbol Zr and atomic number 40.
Key data
- Atomic number
- 40
- Atomic mass
- 91.224 u
- Group / Period
- 4 / 5
- Block
- d-block
- Phase at STP
- Solid
- Density
- 6.52 g/cm³
- Melting point
- 1854.8 °C
- Boiling point
- 4376.9 °C
- Electron configuration
- [Kr] 4d2 5s2
Common uses
- •Nuclear fuel cladding
- •Artificial diamonds
- •Dental crowns
Discovery
Year: 1789
Discovered by: Martin Heinrich Klaproth
Frequently asked questions
What is the atomic number of Zirconium?
Zirconium has atomic number 40. Its symbol is Zr and its atomic mass is 91.224 u.
What category of element is Zirconium?
Zirconium is classified as transition metals. It sits in group 4, period 5 of the periodic table.
What is Zirconium used for?
Common uses of Zirconium include: Nuclear fuel cladding, Artificial diamonds, Dental crowns.
When was Zirconium discovered?
Zirconium was discovered in 1789 by Martin Heinrich Klaproth.
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