Scandium

Symbol ScAtomic number 21
Atomic mass
44.9559
 Thermal conductivity
0.158
Atomic radius
2.09
 Covalent radius
1.44
Density
3.0
 Atomic volume
15.0
Melting point
1814
 Oxidation states
3
Boiling point
3104
 Stable isotopes
1
Heat of vapor.
314.2
 Electronegativity
1.36
Heat of fusion
14.1
 First ionization
6.54
Specific heat
0.6
 Electrical conduct.
...
Electron configuration

General descriptionNuclear data
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Scandium

Scandium forms colorless compounds similar to those of aluminum. It has yet to find much importance in use. It is usually found in nature with yttrium and lanthanum and the fourteen members of the lanthanide series.

Scandium is the first element to occupy the 3d orbital after filling the 4s orbitals, the first of the "d group" of the transition elements.

Atomic dataNuclear data
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Periodic Table

Chemistry concepts

Reference
Pauling
Ch. 26
 
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Scandium Nuclear Data

Z
A
Atomic
Mass (u)
Nuclear
Mass(GeV/c2
Binding
Energy(MeV)
Spin
Natural
Abund.
Half-life
Decay
Q
MeV
21
41
40.969250
38.1522
343.14
7/2
...
0.596s
b+
6.50
21
45
44.955910
41.8658
387.86
7/2
1
stable
...
...
21
46
45.955170
42.7966
396.62
4
...
83.8d
b-
2.37
21
47
46.952409
43.7255
407.26
7/2
...
3.42d
b-
0.60
Atomic data
 Index

Periodic Table

Chemistry concepts

Reference
Rohlf
 
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