Prazeodim, ²Praseodymi

Prazeodim, ²Praseodymi (Pr)

Element me numer atomik 59
Atomic Number59
Atomic Weight140.90766
Numri i masës141
Group
Period6
Blockf
protoni59 p+
neutroni82 n0
elektroni59 e-
Animated Bohr model of Pr (Prazeodim, ²Praseodymi)

Tipar Fizik

Atomic Radius
185 pm
molar volume
covalent radius
176 pm
Metallic Radius
ionic radius
99 pm
Crystal Radius
113 pm
Van der Waals radius
240 pm
density
6,773 g/cm³
Atomic Radii Of The Elements: Prazeodim, ²Praseodymi0153045607590105120135150165180195210225240pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

energjia
proton affinity
electron affinity
ionization energy
ionization energy of Pr (Prazeodim, ²Praseodymi)
enthalpy of vaporization
331 kJ/mol
enthalpy of fusion
11,3 kJ/mol
standard enthalpy of formation
356,9 kJ/mol
elektroni
electron shell2, 8, 18, 21, 8, 2
Bohr model: Pr (Prazeodim, ²Praseodymi)
valence electron2
Lewis structure: Pr (Prazeodim, ²Praseodymi)
konfigurimi i elektronit[Xe] 4f3 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f3 6s2
Enhanced Bohr model of Pr (Prazeodim, ²Praseodymi)
Orbital Diagram of Pr (Prazeodim, ²Praseodymi)
oxidation number0, 1, 2, 3, 4, 5
Elektronegativiteti
1.13
Electrophilicity Index
1,1474513688760803 eV/particle
fundamental state of matter
gjendja agregate e materiesSolid
gaseous state of matter
Boiling Point
3 793,15 K
Melting Point
1 204,15 K
critical pressure
critical temperature
triple point
appearance
Ngjyra
Silver
appearancegrayish white
refractive index
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
electrical conductivity
1,4 MS/m
electrical resistivity
0,0000007 m Ω
Superpërcjellshmëria
Magnetizimi
typeparamagnetic
magnetic susceptibility (Mass)
0,000000423 m³/Kg
magnetic susceptibility (Molar)
0,000000059604 m³/mol
magnetic susceptibility (Volume)
0,0028087
magnetic ordering
Curie temperature
Néel temperature
strukturë
Crystal StructureSimple Hexagonal (HEX)
lattice constant
3,67 Å
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
29 GPa
shear modulus
15 GPa
Young's modulus
37 GPa
Poisson's ratio
0,28
Shpejtësia e zërit
2 280 m/s
klasifikim
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
numër kuantik4I9/2
space group194 (P63/mmc)

Isotopes of Praseodymium

Stable Isotopes1
Unstable Isotopes40
Natural Isotopes1

121Pr

Numri i masës121
numri i neutroneve62
relative atomic mass
120,955393 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
12 ± 5 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2005
parity

decay modeintensitet
p (proton emission)100%

122Pr

Numri i masës122
numri i neutroneve63
relative atomic mass
121,951927 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity

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

123Pr

Numri i masës123
numri i neutroneve64
relative atomic mass
122,946076 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes
parity+

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

124Pr

Numri i masës124
numri i neutroneve65
relative atomic mass
123,94294 ± 0,00043 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,2 ± 0,2 s
Spini
nuclear quadrupole moment
koha e zbulimit apo shpikjes1986
parity

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

125Pr

Numri i masës125
numri i neutroneve66
relative atomic mass
124,937659 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,3 ± 0,7 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2002
parity+

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

126Pr

Numri i masës126
numri i neutroneve67
relative atomic mass
125,93524 ± 0,00021 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,12 ± 0,18 s
Spini4
nuclear quadrupole moment
koha e zbulimit apo shpikjes1983
parity

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

127Pr

Numri i masës127
numri i neutroneve68
relative atomic mass
126,93071 ± 0,00021 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,2 ± 0,3 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1995
parity+

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

128Pr

Numri i masës128
numri i neutroneve69
relative atomic mass
127,928791 ± 0,000032 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,85 ± 0,09 s
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1985
parity+

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

129Pr

Numri i masës129
numri i neutroneve70
relative atomic mass
128,925095 ± 0,000032 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
30 ± 4 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1977
parity+

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

130Pr

Numri i masës130
numri i neutroneve71
relative atomic mass
129,92359 ± 0,000069 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
40 ± 0,4 s
Spini6
nuclear quadrupole moment
koha e zbulimit apo shpikjes1977
parity

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

131Pr

Numri i masës131
numri i neutroneve72
relative atomic mass
130,92023496 ± 0,000050451 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,5 ± 0,03 m
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1977
parity+

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

132Pr

Numri i masës132
numri i neutroneve73
relative atomic mass
131,91924 ± 0,000031 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,49 ± 0,11 m
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1974
parity+

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

133Pr

Numri i masës133
numri i neutroneve74
relative atomic mass
132,916330558 ± 0,000013416 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
6,5 ± 0,3 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1970
parity+

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

134Pr

Numri i masës134
numri i neutroneve75
relative atomic mass
133,915696729 ± 0,00002181 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
17 ± 2 m
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1967
parity-

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

135Pr

Numri i masës135
numri i neutroneve76
relative atomic mass
134,913111772 ± 0,000012686 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
24 ± 1 m
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1954
parity+

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

136Pr

Numri i masës136
numri i neutroneve77
relative atomic mass
135,91267747 ± 0,000012296 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
13,1 ± 0,1 m
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1968
parity+

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

137Pr

Numri i masës137
numri i neutroneve78
relative atomic mass
136,910679183 ± 0,000008733 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,28 ± 0,03 h
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1958
parity+

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

138Pr

Numri i masës138
numri i neutroneve79
relative atomic mass
137,910757495 ± 0,000010748 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,45 ± 0,05 m
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1951
parity+

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

139Pr

Numri i masës139
numri i neutroneve80
relative atomic mass
138,9089327 ± 0,000003917 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,41 ± 0,04 h
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1951
parity+

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

140Pr

Numri i masës140
numri i neutroneve81
relative atomic mass
139,9090856 ± 0,000006593 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,39 ± 0,01 m
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1938
parity+

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

141Pr

Numri i masës141
numri i neutroneve82
relative atomic mass
140,907659604 ± 0,000001607 Da
g-factor
1,7064 ± 0,0012
natural abundance
100
Radioaktivitetstable isotope
half-lifeNot Radioactive ☢️
Spini5/2
nuclear quadrupole moment
-0,077 ± 0,006
koha e zbulimit apo shpikjes1924
parity+

142Pr

Numri i masës142
numri i neutroneve83
relative atomic mass
141,91005164 ± 0,000001607 Da
g-factor
0,117 ± 0,0005
natural abundance
Radioaktivitet☢️ radioactive element
half-life
19,12 ± 0,04 h
Spini2
nuclear quadrupole moment
0,039 ± 0,017
koha e zbulimit apo shpikjes1935
parity-

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

143Pr

Numri i masës143
numri i neutroneve84
relative atomic mass
142,910822624 ± 0,000001949 Da
g-factor
0,77 ± 0,0014285714285714
natural abundance
Radioaktivitet☢️ radioactive element
half-life
13,57 ± 0,02 d
Spini7/2
nuclear quadrupole moment
0,77 ± 0,16
koha e zbulimit apo shpikjes1948
parity+

decay modeintensitet
β (β decay)100%

144Pr

Numri i masës144
numri i neutroneve85
relative atomic mass
143,913310682 ± 0,000002907 Da
g-factor
0
natural abundance
Radioaktivitet☢️ radioactive element
half-life
17,28 ± 0,05 m
Spini0
nuclear quadrupole moment
0
koha e zbulimit apo shpikjes1951
parity-

decay modeintensitet
β (β decay)100%

145Pr

Numri i masës145
numri i neutroneve86
relative atomic mass
144,914517987 ± 0,000007674 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
5,984 ± 0,01 h
Spini7/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1954
parity+

decay modeintensitet
β (β decay)100%

146Pr

Numri i masës146
numri i neutroneve87
relative atomic mass
145,91768763 ± 0,000036882 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
24,09 ± 0,1 m
Spini2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1953
parity-

decay modeintensitet
β (β decay)100%

147Pr

Numri i masës147
numri i neutroneve88
relative atomic mass
146,919007438 ± 0,00001702 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
13,39 ± 0,04 m
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1964
parity+

decay modeintensitet
β (β decay)100%

148Pr

Numri i masës148
numri i neutroneve89
relative atomic mass
147,922129992 ± 0,000016147 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,29 ± 0,02 m
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1964
parity-

decay modeintensitet
β (β decay)100%

149Pr

Numri i masës149
numri i neutroneve90
relative atomic mass
148,9237361 ± 0,0000106 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,26 ± 0,07 m
Spini5/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1964
parity+

decay modeintensitet
β (β decay)100%

150Pr

Numri i masës150
numri i neutroneve91
relative atomic mass
149,926676391 ± 0,000009677 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
6,19 ± 0,16 s
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1970
parity-

decay modeintensitet
β (β decay)100%

151Pr

Numri i masës151
numri i neutroneve92
relative atomic mass
150,928309066 ± 0,000012506 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
18,9 ± 0,07 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1990
parity-

decay modeintensitet
β (β decay)100%

152Pr

Numri i masës152
numri i neutroneve93
relative atomic mass
151,9315529 ± 0,0000199 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
3,57 ± 0,11 s
Spini4
nuclear quadrupole moment
koha e zbulimit apo shpikjes1983
parity+

decay modeintensitet
β (β decay)100%

153Pr

Numri i masës153
numri i neutroneve94
relative atomic mass
152,933903511 ± 0,000012755 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
4,28 ± 0,11 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1987
parity-

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

154Pr

Numri i masës154
numri i neutroneve95
relative atomic mass
153,937885165 ± 0,00010736 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
2,3 ± 0,09 s
Spini3
nuclear quadrupole moment
koha e zbulimit apo shpikjes1988
parity+

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

155Pr

Numri i masës155
numri i neutroneve96
relative atomic mass
154,940509193 ± 0,000018462 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
1,47 ± 0,3 s
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes1992
parity-

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

156Pr

Numri i masës156
numri i neutroneve97
relative atomic mass
155,9447669 ± 0,0000011 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
444 ± 6 ms
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes1992
parity+

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

157Pr

Numri i masës157
numri i neutroneve98
relative atomic mass
156,9480031 ± 0,0000034 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
307 ± 21 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity-

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

158Pr

Numri i masës158
numri i neutroneve99
relative atomic mass
157,952603 ± 0,000322 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
181 ± 14 ms
Spini5
nuclear quadrupole moment
koha e zbulimit apo shpikjes2016
parity-

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

159Pr

Numri i masës159
numri i neutroneve100
relative atomic mass
158,956232 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
134 ± 43 ms
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity-

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

160Pr

Numri i masës160
numri i neutroneve101
relative atomic mass
159,961138 ± 0,000429 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
170 ± 140 ms
Spini1
nuclear quadrupole moment
koha e zbulimit apo shpikjes2017
parity+

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

161Pr

Numri i masës161
numri i neutroneve102
relative atomic mass
160,965121 ± 0,000537 Da
g-factor
natural abundance
Radioaktivitet☢️ radioactive element
half-life
Spini3/2
nuclear quadrupole moment
koha e zbulimit apo shpikjes2018
parity-

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

historia

zbuluesC.F. Aver von Welsbach
vendndodhja e zbulimitAustria
koha e zbulimit apo shpikjes1885
EtimologjiaGreek: prasios and didymos (green twin); from its green salts.
pronunciationpra-si-eh-DIM-i-em (anglisht)

burim

Abundance
Abundance in Earth's crust
9,2 mg/kg
natural abundance (Oqeani)
0,00000064 mg/L
natural abundance (Trupi i njeriut)
natural abundance (meteoroid)
0,0000098 %
natural abundance (Diell)
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