Praseodymijum, ²Praseodimij

Praseodymijum, ²Praseodimij (Pr)

hemijski element sa simbolom Pr i atomskim brojem 59
Atomic Number59
Atomic Weight140.90766
Maseni broj141
Group
Period6
Blockf
Proton59 p+
Neutron82 n0
Elektron59 e-
Animated Bohrov model atoma of Pr (Praseodymijum, ²Praseodimij)

Physical Property

Atomski Radijus
185 pm
Molarni volumen
covalent radius
176 pm
Metallic Radius
Ionski radijus
99 pm
Crystal Radius
113 pm
Van der Waalsov radijus
240 pm
gustoća
6,773 g/cm³
Atomic Radii Of The Elements: Praseodymijum, ²Praseodimij0102030405060708090100110120130140150160170180190200210220230240pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
ionization energy
ionization energy of Pr (Praseodymijum, ²Praseodimij)
Toplota isparavanja
331 kJ/mol
toplota topljenja
11,3 kJ/mol
standard enthalpy of formation
356,9 kJ/mol
Elektron
electron shell2, 8, 18, 21, 8, 2
Bohrov model atoma: Pr (Praseodymijum, ²Praseodimij)
Valentni elektron2
Lewis structure: Pr (Praseodymijum, ²Praseodimij)
electron configuration[Xe] 4f3 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f3 6s2
Enhanced Bohrov model atoma of Pr (Praseodymijum, ²Praseodimij)
Orbital Diagram of Pr (Praseodymijum, ²Praseodimij)
oksidacijsko stanje0, 1, 2, 3, 4, 5
Elektronegativnost
1.13
Electrophilicity Index
1,1474513688760803 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
3.793,15 K
Melting Point
1.204,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearancegrayish white
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
12,5 W/(m K)
thermal expansion
0,0000067 1/K
molar heat capacity
Specific Heat Capacity
0,193 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
Specifična električna provodljivost
1,4 MS/m
electrical resistivity
0,0000007 m Ω
Superprovodljivost
Magnetizam
typeparamagnetic
magnetic susceptibility (Mass)
0,000000423 m³/Kg
magnetic susceptibility (Molar)
0,000000059604 m³/mol
magnetic susceptibility (Volume)
0,0028087
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,67 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
Tvrdoća
bulk modulus
29 GPa
shear modulus
15 GPa
Young's modulus
37 GPa
Poisson's ratio
0,28
Brzina zvuka
2.280 m/s
klasifikacija
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
Kvantni brojevi4I9/2
space group194 (P63/mmc)

Isotopes of Praseodymium

Stable Isotopes1
Unstable Isotopes40
Natural Isotopes1

121Pr

Maseni broj121
broj neutrona62
relative atomic mass
120,955393 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12 ± 5 ms
spin3/2
nuclear quadrupole moment
datum otkrića2005
parity

decay modeintensity
p (proton emission)100%

122Pr

Maseni broj122
broj neutrona63
relative atomic mass
121,951927 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića
parity

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

123Pr

Maseni broj123
broj neutrona64
relative atomic mass
122,946076 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića
parity+

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

124Pr

Maseni broj124
broj neutrona65
relative atomic mass
123,94294 ± 0,00043 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,2 ± 0,2 s
spin
nuclear quadrupole moment
datum otkrića1986
parity

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

125Pr

Maseni broj125
broj neutrona66
relative atomic mass
124,937659 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,3 ± 0,7 s
spin3/2
nuclear quadrupole moment
datum otkrića2002
parity+

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

126Pr

Maseni broj126
broj neutrona67
relative atomic mass
125,93524 ± 0,00021 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,12 ± 0,18 s
spin4
nuclear quadrupole moment
datum otkrića1983
parity

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

127Pr

Maseni broj127
broj neutrona68
relative atomic mass
126,93071 ± 0,00021 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,2 ± 0,3 s
spin3/2
nuclear quadrupole moment
datum otkrića1995
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

128Pr

Maseni broj128
broj neutrona69
relative atomic mass
127,928791 ± 0,000032 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,85 ± 0,09 s
spin3
nuclear quadrupole moment
datum otkrića1985
parity+

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

129Pr

Maseni broj129
broj neutrona70
relative atomic mass
128,925095 ± 0,000032 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
30 ± 4 s
spin3/2
nuclear quadrupole moment
datum otkrića1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

130Pr

Maseni broj130
broj neutrona71
relative atomic mass
129,92359 ± 0,000069 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
40 ± 0,4 s
spin6
nuclear quadrupole moment
datum otkrića1977
parity

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

131Pr

Maseni broj131
broj neutrona72
relative atomic mass
130,92023496 ± 0,000050451 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,5 ± 0,03 m
spin3/2
nuclear quadrupole moment
datum otkrića1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

132Pr

Maseni broj132
broj neutrona73
relative atomic mass
131,91924 ± 0,000031 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,49 ± 0,11 m
spin2
nuclear quadrupole moment
datum otkrića1974
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

133Pr

Maseni broj133
broj neutrona74
relative atomic mass
132,916330558 ± 0,000013416 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,5 ± 0,3 m
spin5/2
nuclear quadrupole moment
datum otkrića1970
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

134Pr

Maseni broj134
broj neutrona75
relative atomic mass
133,915696729 ± 0,00002181 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17 ± 2 m
spin2
nuclear quadrupole moment
datum otkrića1967
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

135Pr

Maseni broj135
broj neutrona76
relative atomic mass
134,913111772 ± 0,000012686 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
24 ± 1 m
spin3/2
nuclear quadrupole moment
datum otkrića1954
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

136Pr

Maseni broj136
broj neutrona77
relative atomic mass
135,91267747 ± 0,000012296 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,1 ± 0,1 m
spin2
nuclear quadrupole moment
datum otkrića1968
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

137Pr

Maseni broj137
broj neutrona78
relative atomic mass
136,910679183 ± 0,000008733 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,28 ± 0,03 h
spin5/2
nuclear quadrupole moment
datum otkrića1958
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

138Pr

Maseni broj138
broj neutrona79
relative atomic mass
137,910757495 ± 0,000010748 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,45 ± 0,05 m
spin1
nuclear quadrupole moment
datum otkrića1951
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

139Pr

Maseni broj139
broj neutrona80
relative atomic mass
138,9089327 ± 0,000003917 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,41 ± 0,04 h
spin5/2
nuclear quadrupole moment
datum otkrića1951
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%

140Pr

Maseni broj140
broj neutrona81
relative atomic mass
139,9090856 ± 0,000006593 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,39 ± 0,01 m
spin1
nuclear quadrupole moment
datum otkrića1938
parity+

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

141Pr

Maseni broj141
broj neutrona82
relative atomic mass
140,907659604 ± 0,000001607 Da
g-factor
1,7064 ± 0,0012
natural abundance
100
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin5/2
nuclear quadrupole moment
-0,077 ± 0,006
datum otkrića1924
parity+

142Pr

Maseni broj142
broj neutrona83
relative atomic mass
141,91005164 ± 0,000001607 Da
g-factor
0,117 ± 0,0005
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
19,12 ± 0,04 h
spin2
nuclear quadrupole moment
0,039 ± 0,017
datum otkrića1935
parity-

decay modeintensity
β (β decay)100%
ϵ (electron capture)0.0164%

143Pr

Maseni broj143
broj neutrona84
relative atomic mass
142,910822624 ± 0,000001949 Da
g-factor
0,77 ± 0,0014285714285714
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,57 ± 0,02 d
spin7/2
nuclear quadrupole moment
0,77 ± 0,16
datum otkrića1948
parity+

decay modeintensity
β (β decay)100%

144Pr

Maseni broj144
broj neutrona85
relative atomic mass
143,913310682 ± 0,000002907 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,28 ± 0,05 m
spin0
nuclear quadrupole moment
0
datum otkrića1951
parity-

decay modeintensity
β (β decay)100%

145Pr

Maseni broj145
broj neutrona86
relative atomic mass
144,914517987 ± 0,000007674 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,984 ± 0,01 h
spin7/2
nuclear quadrupole moment
datum otkrića1954
parity+

decay modeintensity
β (β decay)100%

146Pr

Maseni broj146
broj neutrona87
relative atomic mass
145,91768763 ± 0,000036882 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
24,09 ± 0,1 m
spin2
nuclear quadrupole moment
datum otkrića1953
parity-

decay modeintensity
β (β decay)100%

147Pr

Maseni broj147
broj neutrona88
relative atomic mass
146,919007438 ± 0,00001702 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,39 ± 0,04 m
spin3/2
nuclear quadrupole moment
datum otkrića1964
parity+

decay modeintensity
β (β decay)100%

148Pr

Maseni broj148
broj neutrona89
relative atomic mass
147,922129992 ± 0,000016147 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,29 ± 0,02 m
spin1
nuclear quadrupole moment
datum otkrića1964
parity-

decay modeintensity
β (β decay)100%

149Pr

Maseni broj149
broj neutrona90
relative atomic mass
148,9237361 ± 0,0000106 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,26 ± 0,07 m
spin5/2
nuclear quadrupole moment
datum otkrića1964
parity+

decay modeintensity
β (β decay)100%

150Pr

Maseni broj150
broj neutrona91
relative atomic mass
149,926676391 ± 0,000009677 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,19 ± 0,16 s
spin1
nuclear quadrupole moment
datum otkrića1970
parity-

decay modeintensity
β (β decay)100%

151Pr

Maseni broj151
broj neutrona92
relative atomic mass
150,928309066 ± 0,000012506 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
18,9 ± 0,07 s
spin3/2
nuclear quadrupole moment
datum otkrića1990
parity-

decay modeintensity
β (β decay)100%

152Pr

Maseni broj152
broj neutrona93
relative atomic mass
151,9315529 ± 0,0000199 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,57 ± 0,11 s
spin4
nuclear quadrupole moment
datum otkrića1983
parity+

decay modeintensity
β (β decay)100%

153Pr

Maseni broj153
broj neutrona94
relative atomic mass
152,933903511 ± 0,000012755 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,28 ± 0,11 s
spin3/2
nuclear quadrupole moment
datum otkrića1987
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

154Pr

Maseni broj154
broj neutrona95
relative atomic mass
153,937885165 ± 0,00010736 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,3 ± 0,09 s
spin3
nuclear quadrupole moment
datum otkrića1988
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

155Pr

Maseni broj155
broj neutrona96
relative atomic mass
154,940509193 ± 0,000018462 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,47 ± 0,3 s
spin3/2
nuclear quadrupole moment
datum otkrića1992
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

156Pr

Maseni broj156
broj neutrona97
relative atomic mass
155,9447669 ± 0,0000011 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
444 ± 6 ms
spin1
nuclear quadrupole moment
datum otkrića1992
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

157Pr

Maseni broj157
broj neutrona98
relative atomic mass
156,9480031 ± 0,0000034 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
307 ± 21 ms
spin3/2
nuclear quadrupole moment
datum otkrića2017
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

158Pr

Maseni broj158
broj neutrona99
relative atomic mass
157,952603 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
181 ± 14 ms
spin5
nuclear quadrupole moment
datum otkrića2016
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

159Pr

Maseni broj159
broj neutrona100
relative atomic mass
158,956232 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
134 ± 43 ms
spin3/2
nuclear quadrupole moment
datum otkrića2017
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

160Pr

Maseni broj160
broj neutrona101
relative atomic mass
159,961138 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
170 ± 140 ms
spin1
nuclear quadrupole moment
datum otkrića2017
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

161Pr

Maseni broj161
broj neutrona102
relative atomic mass
160,965121 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića2018
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Praseodym 1

historija

otkrivač ili izumiteljC.F. Aver von Welsbach
mjesto otkrićaAustria
datum otkrića1885
EtimologijaGreek: prasios and didymos (green twin); from its green salts.
pronunciationpra-si-eh-DIM-i-em (engleski)

izvor

Abundance
Abundance in Earth's crust
9,2 mg/kg
natural abundance (okean)
0,00000064 mg/L
natural abundance (ljudsko tijelo)
natural abundance (Meteoroidi)
0,0000098 %
natural abundance (Sunce)
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