Gadolinium

Symbol GdAtomic number 64
Atomic mass
152.25
Thermal conductivity
0.106
Atomic radius
2.54
Covalent radius
1.61
Density
7.89
Atomic volume
19.9
Melting point
1585
Oxidation states
3
Boiling point
3539
Stable isotopes
7
Heat of vapor.
359.4
Electronegativity
1.2
Heat of fusion
10.05
First ionization
6.15
Specific heat
0.23
Electrical conduct.
...
Electron configuration

General descriptionNuclear data
Index

Periodic Table

Chemistry concepts
 
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Gadolinium

As a member of the fourteen member lanthanide series, this element has few properties which distinguish it from the other members of the series. All of them along with lanthanum, yttrium, and scandium occur in very small quantities in nature. The usual source is the mineral monazite, or monazite sand, which is a mixture of phosphates containing also some thorium phosphate.

Some gadolinium compounds are strongly paramagnetic. Compounds such as gadolinium sulfate octahydrate, Gd2(SO4)3 . 8 H2O, are used in the magnetic method of obtaining extremely low temperatures.

Atomic dataNuclear data
Index

Periodic Table

Chemistry concepts

Reference
Pauling
Ch. 26
 
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Gadolinium Nuclear Data

Z
A
Atomic
Mass (u)
Nuclear
Mass(GeV/c2
Binding
Energy(MeV)
Spin
Natural
Abund.
Half-life
Decay
Q
MeV
64
150
149.918663
139.6168
1236.4
0
...
1.8My
a
2.80
64
152
151.919787
141.4808
1251.5
0
0.002
stable
...
...
64
154
153.920861
143.3448
1266.6
0
0.0218
stable
...
...
64
155
154.922617
144.2780
1273.1
3/2
0.148
stable
...
...
64
156
155.922118
145.2090
1281.6
0
0.2047
stable
...
...
64
157
156.923956
146.1422
1288.0
3/2
0.1565
stable
...
...
64
158
157.924099
147.0738
1295.9
0
0.2484
stable
...
...
64
160
159.927049
148.9396
1309.3
0
0.2186
stable
...
...
Atomic data
Index

Periodic Table

Chemistry concepts

Reference
Rohlf
 
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