Zirconium

Statistics:

• Name: Zirconium
• Symbol: Zr
• Classification: Transition Metal
• Atomic Number: 40
• Atomic Mass: 91.224 g/mol
• Density: 6.51 g/cm³
• Melting: 1852°C
• Boiling: 4377°C
• Protons & Electrons:40
• Neutrons:51
• Discovered: 1789
• Discovered By: Klaproth
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Electrons Per Energy Level:

• Level 1: 2
• Level 2: 8
• Level 3: 18
• Level 4: 10
• Level 5: 2

Isotopes:

Isotope: Half-life

• ⁸⁶Zr: 16.5 hours
• ⁸⁸Zr: 83.4 days
• ⁸⁹Zr: 78.41 hours
• ⁹⁰Zr: stable
• ⁹¹Zr: stable
• ⁹²Zr: stable
• ⁹³Zr: 1.53e+6 years
• ⁹⁴Zr: stable
• ⁹⁵Zr: 64.02 days
• ⁹⁶Zr: 3.8e19 years
• ⁹⁷Zr: 16.91 hours

Brief Summary

Zirconium is a Transition Metal with the symbol 'Zr' and contains 40 Protons & Electrons with 51 neutrons in the nucleus of the atom. Zirconium has an atomic mass of 91.224 g/mol and, at a temperature of 20°C, has a density of 6.51 g/cm³. It will melt at a temperature of 1852°C and boil at 4377°C.

Zirconium was discovered by Klaproth in 1789 and is named 'Zirconium' zircon, a mineral.

Some common usages for Zirconium: nuclear applications.

Definitions and Notes

Density listed is at a temperature of 20°C.

Isotopes are forms of an element who have the same atomic number but different mass because they contain different number of neutrons.

Half-life is the time required for a quantity of a subject to fall to half of its current quantity.

MLA Citing Format

Zirconium :: Zr :: 40 - Chemical Element. 22 Nov. 2008 <http://www.chemicalelement.com/element/zirconium.html>.