Zirconium

Symbol ZrAtomic number 40
Atomic mass
91.22
 Thermal conductivity
0.227
Atomic radius
2.16
 Covalent radius
1.45
Density
6.49
 Atomic volume
14.1
Melting point
2125
 Oxidation states
4
Boiling point
4682
 Stable isotopes
5
Heat of vapor.
58.20
 Electronegativity
1.33
Heat of fusion
16.90
 First ionization
6.84
Specific heat
0.27
 Electrical conduct.
...
Electron configuration

General descriptionNuclear data
 Index

Periodic Table

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Zirconium

Zirconium occurs in nature principally as a silicate mineral zircon, ZrSiO4. It is a hard mineral found in a variety of colors (white, blue, red, green) and is used as a semi-precious stone in jewelry. It also occurs in the silicates catapleiite and elpidite.

Another mineral form is the carbonate mineral Weloganite.

Zirconium appears with boron in the oxide mineral painite, which is very hard (MH =8) and sometimes of gem quality.

Atomic dataNuclear data
 Index

Periodic Table

Chemistry concepts

Reference
Pauling
Ch. 29
 
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Zirconium Nuclear Data

Z
A
Atomic
Mass (u)
Nuclear
Mass(GeV/c2
Binding
Energy(MeV)
Spin
Natural
Abund.
Half-life
Decay
Q
MeV
40
90
89.904703
83.7259
783.90
0
0.5145
stable
...
...
40
91
90.905644
84.6583
791.10
5/2
0.1122
stable
...
...
40
92
91.905039
85.5893
799.73
0
0.1715
stable
...
...
40
93
92.906474
86.5221
806.47
5/2
...
1.5My
b-
0.08
40
94
93.906315
87.4534
814.69
0
0.1738
stable
...
...
40
96
95.908275
89.3183
829.01
0
0.028
stable
...
...
Atomic data
Index

Periodic Table

Chemistry concepts

Reference
Rohlf
 
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