Praseodimium

Praseodimium (Pr)

element with the atomic number of 59
Atomic Number59
Atomic Weight140.90766
Nombor jisim141
Group
Period6
Blockf
proton59 p+
neutron82 n0
Elektron59 e-
Animated Model Bohr of Pr (Praseodimium)

Sifat Fizikal

Jejari Atom
185 pm
molar volume
Jejari kovalen
176 pm
Metallic Radius
ionic radius
99 pm
Crystal Radius
113 pm
Jejari van der Waals
240 pm
ketumpatan
6.773 g/cm³
Atomic Radii Of The Elements: Praseodimium0102030405060708090100110120130140150160170180190200210220230240pmJejari AtomJejari KovalenMetallic RadiusJejari van der Waals

Sifat Kimia

tenaga
proton affinity
Pertalian elektron
ionization energy
ionization energy of Pr (Praseodimium)
Entalpi pengewapan
331 kJ/mol
entalpi pelakuran
11.3 kJ/mol
standard enthalpy of formation
356.9 kJ/mol
Elektron
Petala elektron2, 8, 18, 21, 8, 2
Model Bohr: Pr (Praseodimium)
Elektron valens2
Teori ion Lewis: Pr (Praseodimium)
tatarajah elektron[Xe] 4f3 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f3 6s2
Enhanced Model Bohr of Pr (Praseodimium)
Orbital Diagram of Pr (Praseodimium)
Keadaan pengoksidaan0, 1, 2, 3, 4, 5
Keelektronegatifan
1.13
Electrophilicity Index
1.1474513688760803 eV/particle
keadaan jirim asas
fasa jirimSolid
gaseous state of matter
Boiling Point
3,793.15 K
Melting Point
1,204.15 K
critical pressure
critical temperature
triple point
rupa
warna
Silver
rupagrayish white
indeks biasan
sifat bahan
Thermal Conductivity
12.5 W/(m K)
Pengembangan terma
0.0000067 1/K
molar heat capacity
Specific Heat Capacity
0.193 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
Kekonduksian elektrik
1.4 MS/m
Kerintangan dan kekonduksian elektrik
0.0000007 m Ω
Kesuperkonduksian
kemagnetan
typeparamagnetic
magnetic susceptibility (Mass)
0.000000423 m³/Kg
magnetic susceptibility (Molar)
0.000000059604 m³/mol
magnetic susceptibility (Volume)
0.0028087
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3.67 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
Modulus pukal
29 GPa
shear modulus
15 GPa
Young's modulus
37 GPa
Nisbah Poisson
0.28
Kelajuan bunyi
2,280 m/s
pengelasan
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number30
Mendeleev Number17
Pettifor Number31
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
216 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
11.4
Neutron Mass Absorption
0.0029
Nombor kuantum4I9/2
space group194 (P63/mmc)

Isotopes of Praseodymium

Stable Isotopes1
Unstable Isotopes40
Natural Isotopes1

121Pr

Nombor jisim121
nombor neutron62
jisim atom relatif
120.955393 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
12 ± 5 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan2005
parity

decay modeKeamatan (fizik)
p (proton emission)100%

122Pr

Nombor jisim122
nombor neutron63
jisim atom relatif
121.951927 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin
nuclear quadrupole moment
tarikh penemuan
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

123Pr

Nombor jisim123
nombor neutron64
jisim atom relatif
122.946076 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin3/2
nuclear quadrupole moment
tarikh penemuan
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)
β+ p (β+-delayed proton emission)

124Pr

Nombor jisim124
nombor neutron65
jisim atom relatif
123.94294 ± 0.00043 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.2 ± 0.2 s
Spin
nuclear quadrupole moment
tarikh penemuan1986
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

125Pr

Nombor jisim125
nombor neutron66
jisim atom relatif
124.937659 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.3 ± 0.7 s
Spin3/2
nuclear quadrupole moment
tarikh penemuan2002
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

126Pr

Nombor jisim126
nombor neutron67
jisim atom relatif
125.93524 ± 0.00021 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.12 ± 0.18 s
Spin4
nuclear quadrupole moment
tarikh penemuan1983
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

127Pr

Nombor jisim127
nombor neutron68
jisim atom relatif
126.93071 ± 0.00021 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.2 ± 0.3 s
Spin3/2
nuclear quadrupole moment
tarikh penemuan1995
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

128Pr

Nombor jisim128
nombor neutron69
jisim atom relatif
127.928791 ± 0.000032 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.85 ± 0.09 s
Spin3
nuclear quadrupole moment
tarikh penemuan1985
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)

129Pr

Nombor jisim129
nombor neutron70
jisim atom relatif
128.925095 ± 0.000032 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
30 ± 4 s
Spin3/2
nuclear quadrupole moment
tarikh penemuan1977
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

130Pr

Nombor jisim130
nombor neutron71
jisim atom relatif
129.92359 ± 0.000069 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
40 ± 0.4 s
Spin6
nuclear quadrupole moment
tarikh penemuan1977
parity

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

131Pr

Nombor jisim131
nombor neutron72
jisim atom relatif
130.92023496 ± 0.000050451 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.5 ± 0.03 m
Spin3/2
nuclear quadrupole moment
tarikh penemuan1977
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

132Pr

Nombor jisim132
nombor neutron73
jisim atom relatif
131.91924 ± 0.000031 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.49 ± 0.11 m
Spin2
nuclear quadrupole moment
tarikh penemuan1974
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

133Pr

Nombor jisim133
nombor neutron74
jisim atom relatif
132.916330558 ± 0.000013416 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
6.5 ± 0.3 m
Spin5/2
nuclear quadrupole moment
tarikh penemuan1970
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

134Pr

Nombor jisim134
nombor neutron75
jisim atom relatif
133.915696729 ± 0.00002181 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
17 ± 2 m
Spin2
nuclear quadrupole moment
tarikh penemuan1967
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

135Pr

Nombor jisim135
nombor neutron76
jisim atom relatif
134.913111772 ± 0.000012686 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
24 ± 1 m
Spin3/2
nuclear quadrupole moment
tarikh penemuan1954
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

136Pr

Nombor jisim136
nombor neutron77
jisim atom relatif
135.91267747 ± 0.000012296 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
13.1 ± 0.1 m
Spin2
nuclear quadrupole moment
tarikh penemuan1968
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

137Pr

Nombor jisim137
nombor neutron78
jisim atom relatif
136.910679183 ± 0.000008733 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.28 ± 0.03 h
Spin5/2
nuclear quadrupole moment
tarikh penemuan1958
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

138Pr

Nombor jisim138
nombor neutron79
jisim atom relatif
137.910757495 ± 0.000010748 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.45 ± 0.05 m
Spin1
nuclear quadrupole moment
tarikh penemuan1951
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

139Pr

Nombor jisim139
nombor neutron80
jisim atom relatif
138.9089327 ± 0.000003917 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.41 ± 0.04 h
Spin5/2
nuclear quadrupole moment
tarikh penemuan1951
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%

140Pr

Nombor jisim140
nombor neutron81
jisim atom relatif
139.9090856 ± 0.000006593 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.39 ± 0.01 m
Spin1
nuclear quadrupole moment
tarikh penemuan1938
parity+

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)48.7%
ϵ (electron capture)51.3%

141Pr

Nombor jisim141
nombor neutron82
jisim atom relatif
140.907659604 ± 0.000001607 Da
g-factor
1.7064 ± 0.0012
natural abundance
100
Reputan radioaktifIsotop stabil
setengah hayatNot Radioactive ☢️
Spin5/2
nuclear quadrupole moment
-0.077 ± 0.006
tarikh penemuan1924
parity+

142Pr

Nombor jisim142
nombor neutron83
jisim atom relatif
141.91005164 ± 0.000001607 Da
g-factor
0.117 ± 0.0005
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
19.12 ± 0.04 h
Spin2
nuclear quadrupole moment
0.039 ± 0.017
tarikh penemuan1935
parity-

decay modeKeamatan (fizik)
β (β decay)100%
ϵ (electron capture)0.0164%

143Pr

Nombor jisim143
nombor neutron84
jisim atom relatif
142.910822624 ± 0.000001949 Da
g-factor
0.77 ± 0.0014285714285714
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
13.57 ± 0.02 d
Spin7/2
nuclear quadrupole moment
0.77 ± 0.16
tarikh penemuan1948
parity+

decay modeKeamatan (fizik)
β (β decay)100%

144Pr

Nombor jisim144
nombor neutron85
jisim atom relatif
143.913310682 ± 0.000002907 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
17.28 ± 0.05 m
Spin0
nuclear quadrupole moment
0
tarikh penemuan1951
parity-

decay modeKeamatan (fizik)
β (β decay)100%

145Pr

Nombor jisim145
nombor neutron86
jisim atom relatif
144.914517987 ± 0.000007674 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5.984 ± 0.01 h
Spin7/2
nuclear quadrupole moment
tarikh penemuan1954
parity+

decay modeKeamatan (fizik)
β (β decay)100%

146Pr

Nombor jisim146
nombor neutron87
jisim atom relatif
145.91768763 ± 0.000036882 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
24.09 ± 0.1 m
Spin2
nuclear quadrupole moment
tarikh penemuan1953
parity-

decay modeKeamatan (fizik)
β (β decay)100%

147Pr

Nombor jisim147
nombor neutron88
jisim atom relatif
146.919007438 ± 0.00001702 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
13.39 ± 0.04 m
Spin3/2
nuclear quadrupole moment
tarikh penemuan1964
parity+

decay modeKeamatan (fizik)
β (β decay)100%

148Pr

Nombor jisim148
nombor neutron89
jisim atom relatif
147.922129992 ± 0.000016147 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.29 ± 0.02 m
Spin1
nuclear quadrupole moment
tarikh penemuan1964
parity-

decay modeKeamatan (fizik)
β (β decay)100%

149Pr

Nombor jisim149
nombor neutron90
jisim atom relatif
148.9237361 ± 0.0000106 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.26 ± 0.07 m
Spin5/2
nuclear quadrupole moment
tarikh penemuan1964
parity+

decay modeKeamatan (fizik)
β (β decay)100%

150Pr

Nombor jisim150
nombor neutron91
jisim atom relatif
149.926676391 ± 0.000009677 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
6.19 ± 0.16 s
Spin1
nuclear quadrupole moment
tarikh penemuan1970
parity-

decay modeKeamatan (fizik)
β (β decay)100%

151Pr

Nombor jisim151
nombor neutron92
jisim atom relatif
150.928309066 ± 0.000012506 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
18.9 ± 0.07 s
Spin3/2
nuclear quadrupole moment
tarikh penemuan1990
parity-

decay modeKeamatan (fizik)
β (β decay)100%

152Pr

Nombor jisim152
nombor neutron93
jisim atom relatif
151.9315529 ± 0.0000199 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.57 ± 0.11 s
Spin4
nuclear quadrupole moment
tarikh penemuan1983
parity+

decay modeKeamatan (fizik)
β (β decay)100%

153Pr

Nombor jisim153
nombor neutron94
jisim atom relatif
152.933903511 ± 0.000012755 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.28 ± 0.11 s
Spin3/2
nuclear quadrupole moment
tarikh penemuan1987
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

154Pr

Nombor jisim154
nombor neutron95
jisim atom relatif
153.937885165 ± 0.00010736 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.3 ± 0.09 s
Spin3
nuclear quadrupole moment
tarikh penemuan1988
parity+

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

155Pr

Nombor jisim155
nombor neutron96
jisim atom relatif
154.940509193 ± 0.000018462 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.47 ± 0.3 s
Spin3/2
nuclear quadrupole moment
tarikh penemuan1992
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

156Pr

Nombor jisim156
nombor neutron97
jisim atom relatif
155.9447669 ± 0.0000011 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
444 ± 6 ms
Spin1
nuclear quadrupole moment
tarikh penemuan1992
parity+

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

157Pr

Nombor jisim157
nombor neutron98
jisim atom relatif
156.9480031 ± 0.0000034 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
307 ± 21 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan2017
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

158Pr

Nombor jisim158
nombor neutron99
jisim atom relatif
157.952603 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
181 ± 14 ms
Spin5
nuclear quadrupole moment
tarikh penemuan2016
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

159Pr

Nombor jisim159
nombor neutron100
jisim atom relatif
158.956232 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
134 ± 43 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan2017
parity-

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

160Pr

Nombor jisim160
nombor neutron101
jisim atom relatif
159.961138 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
170 ± 140 ms
Spin1
nuclear quadrupole moment
tarikh penemuan2017
parity+

decay modeKeamatan (fizik)
β (β decay)100%
β n (β-delayed neutron emission)

161Pr

Nombor jisim161
nombor neutron102
jisim atom relatif
160.965121 ± 0.000537 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin3/2
nuclear quadrupole moment
tarikh penemuan2018
parity-

decay modeKeamatan (fizik)
β (β decay)
β n (β-delayed neutron emission)
Praseodym 1

sejarah

penemu atau perekaC.F. Aver von Welsbach
tempat penemuanAustria
tarikh penemuan1885
EtimologiGreek: prasios and didymos (green twin); from its green salts.
sebutanpra-si-eh-DIM-i-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust
9.2 mg/kg
natural abundance (lautan)
0.00000064 mg/L
natural abundance (Tubuh manusia)
natural abundance (Meteoroid)
0.0000098 %
natural abundance (Matahari)
0.0000001 %
Abundance in Universe
0.0000002 %

Nuclear Screening Constants

1s1.1694
2p4.2306
2s15.538
3d13.8476
3p19.1756
3s19.499
4d32.7028
4f37.8992
4p29.9432
4s28.6668
5p43.7165
5s41.387
6s51.2534