Chemicool
Yb
70
173.04
Ytterbium
General
|
States
|
Energies
|
Oxidation & Electrons
|
Appearance & Characteristics
Reactions
|
Other Forms
|
Radius
|
Conductivity
|
Abundance
Encyclopedia Britannica articles
General
Name
Ytterbium
Symbol
Yb
atomic number
70
Atomic weight
173.04
Density @ 293 K
6.98 g/cm3
Atomic volume
24.79 cm3/mol
Group
Rare Earth, Lanthanides
discovered
1879
States
state (s, l, g)
s
melting point
1097.2 K
boiling point
1700 K
Heat of fusion
7.660 kJ/mol
Heat of vaporization
128.90 kJ/mol
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Energies
1st ionization energy
603.4 kJ/mole
electronegativity
1.21
2nd ionization energy
1176 kJ/mole
electron affinity
50 kJ/mole
3rd ionization energy
2415 kJ/mole
Specific heat
0.15 J/gK
heat atomization
152 kJ/mole atoms
Oxidation & Electrons
Shells
2,8,18,32,8,2
electron configuration
[Xe] 4f14 6s2
minimum oxidation number
0
maximum oxidation number
3
min. common oxidation no.
0
max. common oxidation no.
3
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Appearance & Characteristics
structure
fcc: face-centered cubic
color
silvery-white
uses
alloys
toxicity
hardness
mohs
characteristics
soft
Reactions
reaction with air
vigorous, = Yb2O3
reaction with 6M HCl
mild, = H2, YbCl3
reaction with 6M HCl
mild, = H2, YbCl3
reaction with 15M HNO3
mild, = Yb(NO3)3
reaction with 6M NaOH
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Other Forms
number of isotopes
7
hydride(s)
YbH2 Yb2H5
oxide(s)
Yb2O3
chloride(s)
YbCl2 YbCl3
Radius
ionic radius (2- ion)
pm
ionic radius (1- ion)
pm
atomic radius
193 pm
ionic radius (1+ ion)
pm
ionic radius (2+ ion)
116 pm
ionic radius (3+ ion)
100.8 pm
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Conductivity
thermal conductivity
34.9 J/m-sec-deg
electrical conductivity
35.7 1/mohm-cm
polarizability
21 A^3
Abundance
source
Monazite(phosphate),bastnaesite
rel. abund. solar system
-0.606 log
abundance earth's crust
0.5 log
cost, pure
530 $/100g
cost, bulk
$/100g
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