Promethijum, ²Prometij

Promethijum, ²Prometij (Pm)

hemijski element sa simbolom Pm i atomskim brojem 61
Atomic Number61
Atomic Weight144.91276
Maseni broj126
Group
Period6
Blockf
Proton61 p+
Neutron65 n0
Elektron61 e-
Animated Bohrov model atoma of Pm (Promethijum, ²Prometij)

Physical Property

Atomski Radijus
185 pm
Molarni volumen
covalent radius
173 pm
Metallic Radius
Ionski radijus
97 pm
Crystal Radius
111 pm
Van der Waalsov radijus
238 pm
gustoća
7,26 g/cm³
Atomic Radii Of The Elements: Promethijum, ²Prometij0102030405060708090100110120130140150160170180190200210220230240pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
ionization energy
ionization energy of Pm (Promethijum, ²Prometij)
Toplota isparavanja
toplota topljenja
standard enthalpy of formation
Elektron
electron shell2, 8, 18, 23, 8, 2
Bohrov model atoma: Pm (Promethijum, ²Prometij)
Valentni elektron2
Lewis structure: Pm (Promethijum, ²Prometij)
electron configuration[Xe] 4f5 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f5 6s2
Enhanced Bohrov model atoma of Pm (Promethijum, ²Prometij)
Orbital Diagram of Pm (Promethijum, ²Prometij)
oksidacijsko stanje2, 3
Elektronegativnost
Electrophilicity Index
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
Melting Point
1.315,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearancemetallic
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
17,9 W/(m K)
thermal expansion
0,000011 1/K
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
Specifična električna provodljivost
1,3 MS/m
electrical resistivity
0,00000075 m Ω
Superprovodljivost
Magnetizam
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal Structure ()
lattice constant
Lattice Angles
mechanical property
Tvrdoća
bulk modulus
33 GPa
shear modulus
18 GPa
Young's modulus
46 GPa
Poisson's ratio
0,28
Brzina zvuka
klasifikacija
CategoryLanthanides, Lanthanides
CAS Group
IUPAC Group
Glawe Number28
Mendeleev Number21
Pettifor Number29
Geochemical Classrare earth & related
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
200 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
8.400
Neutron Mass Absorption
Kvantni brojevi6H5/2
space group ()

Isotopes of Promethium

Stable Isotopes0
Unstable Isotopes40
Natural Isotopes0

126Pm

Maseni broj126
broj neutrona65
relative atomic mass
125,957327 ± 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)

127Pm

Maseni broj127
broj neutrona66
relative atomic mass
126,951358 ± 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+)
p (proton emission)

128Pm

Maseni broj128
broj neutrona67
relative atomic mass
127,948234 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1 ± 0,3 s
spin4
nuclear quadrupole moment
datum otkrića1999
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)
p (proton emission)0%

129Pm

Maseni broj129
broj neutrona68
relative atomic mass
128,942909 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,4 ± 0,9 s
spin5/2
nuclear quadrupole moment
datum otkrića2004
parity+

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

130Pm

Maseni broj130
broj neutrona69
relative atomic mass
129,940451 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,6 ± 0,2 s
spin5
nuclear quadrupole moment
datum otkrića1985
parity+

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

131Pm

Maseni broj131
broj neutrona70
relative atomic mass
130,935834 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,3 ± 0,8 s
spin11/2
nuclear quadrupole moment
datum otkrića1998
parity-

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

132Pm

Maseni broj132
broj neutrona71
relative atomic mass
131,93384 ± 0,00016 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,2 ± 0,6 s
spin3
nuclear quadrupole moment
datum otkrića1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)5%

133Pm

Maseni broj133
broj neutrona72
relative atomic mass
132,929782 ± 0,000054 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13,5 ± 2,1 s
spin3/2
nuclear quadrupole moment
datum otkrića1977
parity+

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

134Pm

Maseni broj134
broj neutrona73
relative atomic mass
133,928326 ± 0,000045 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22 ± 1 s
spin5
nuclear quadrupole moment
datum otkrića1977
parity+

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

135Pm

Maseni broj135
broj neutrona74
relative atomic mass
134,924785 ± 0,000089 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
49 ± 3 s
spin3/2
nuclear quadrupole moment
datum otkrića1975
parity+

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

136Pm

Maseni broj136
broj neutrona75
relative atomic mass
135,923595949 ± 0,000074152 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
107 ± 6 s
spin7
nuclear quadrupole moment
datum otkrića1988
parity+

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

137Pm

Maseni broj137
broj neutrona76
relative atomic mass
136,920479519 ± 0,000014 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
datum otkrića1975
parity-

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

138Pm

Maseni broj138
broj neutrona77
relative atomic mass
137,919576119 ± 0,000012456 Da
g-factor
1,0666666666667 ± 0,3
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,24 ± 0,05 m
spin3
nuclear quadrupole moment
datum otkrića1973
parity-

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

139Pm

Maseni broj139
broj neutrona78
relative atomic mass
138,916799228 ± 0,000014587 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,15 ± 0,05 m
spin5/2
nuclear quadrupole moment
datum otkrića1967
parity

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

140Pm

Maseni broj140
broj neutrona79
relative atomic mass
139,916035918 ± 0,000026001 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,2 ± 0,2 s
spin1
nuclear quadrupole moment
datum otkrića1966
parity+

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

141Pm

Maseni broj141
broj neutrona80
relative atomic mass
140,913555081 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20,9 ± 0,05 m
spin5/2
nuclear quadrupole moment
datum otkrića1952
parity+

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

142Pm

Maseni broj142
broj neutrona81
relative atomic mass
141,912890982 ± 0,00002533 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
40,5 ± 0,5 s
spin1
nuclear quadrupole moment
datum otkrića1959
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
e+ (positron emission)77.1%
ϵ (electron capture)22.9%

143Pm

Maseni broj143
broj neutrona82
relative atomic mass
142,910938068 ± 0,00000316 Da
g-factor
1,52 ± 0,2
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
265 ± 7 d
spin5/2
nuclear quadrupole moment
datum otkrića1952
parity+

decay modeintensity
ϵ (electron capture)100%
e+ (positron emission)5.7%

144Pm

Maseni broj144
broj neutrona83
relative atomic mass
143,912596208 ± 0,000003126 Da
g-factor
0,338 ± 0,028
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
363 ± 14 d
spin5
nuclear quadrupole moment
datum otkrića1952
parity-

decay modeintensity
ϵ (electron capture)100%
e+ (positron emission)8%

145Pm

Maseni broj145
broj neutrona84
relative atomic mass
144,912755748 ± 0,000003011 Da
g-factor
1,52 ± 0,064
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,7 ± 0,4 y
spin5/2
nuclear quadrupole moment
0,23 ± 0,08
datum otkrića1951
parity+

decay modeintensity
ϵ (electron capture)100%
α (α emission)2.8%

146Pm

Maseni broj146
broj neutrona85
relative atomic mass
145,91470224 ± 0,000004589 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,53 ± 0,05 y
spin3
nuclear quadrupole moment
datum otkrića1960
parity-

decay modeintensity
ϵ (electron capture)66%
β (β decay)34%

147Pm

Maseni broj147
broj neutrona86
relative atomic mass
146,915144944 ± 0,000001382 Da
g-factor
0,73714285714286 ± 0,02
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,6234 ± 0,0002 y
spin7/2
nuclear quadrupole moment
0,74 ± 0,2
datum otkrića1947
parity+

decay modeintensity
β (β decay)100%

148Pm

Maseni broj148
broj neutrona87
relative atomic mass
147,917481091 ± 0,000006108 Da
g-factor
2,1 ± 0,2
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,368 ± 0,007 d
spin1
nuclear quadrupole moment
0,2 ± 0,2
datum otkrića1947
parity-

decay modeintensity
β (β decay)100%

149Pm

Maseni broj149
broj neutrona88
relative atomic mass
148,918341507 ± 0,000002344 Da
g-factor
0,94285714285714 ± 0,14285714285714
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
53,08 ± 0,05 h
spin7/2
nuclear quadrupole moment
datum otkrića1947
parity+

decay modeintensity
β (β decay)100%

150Pm

Maseni broj150
broj neutrona89
relative atomic mass
149,920990014 ± 0,000021504 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,698 ± 0,015 h
spin1
nuclear quadrupole moment
datum otkrića1952
parity-

decay modeintensity
β (β decay)100%

151Pm

Maseni broj151
broj neutrona90
relative atomic mass
150,921216613 ± 0,000004949 Da
g-factor
0,72 ± 0,08
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
28,4 ± 0,04 h
spin5/2
nuclear quadrupole moment
2,2 ± 0,9
datum otkrića1952
parity+

decay modeintensity
β (β decay)100%

152Pm

Maseni broj152
broj neutrona91
relative atomic mass
151,923505185 ± 0,000027809 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,12 ± 0,08 m
spin1
nuclear quadrupole moment
datum otkrića1958
parity+

decay modeintensity
β (β decay)100%

153Pm

Maseni broj153
broj neutrona92
relative atomic mass
152,924156252 ± 0,000009729 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,25 ± 0,02 m
spin5/2
nuclear quadrupole moment
datum otkrića1962
parity-

decay modeintensity
β (β decay)100%

154Pm

Maseni broj154
broj neutrona93
relative atomic mass
153,926712791 ± 0,000026861 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,68 ± 0,07 m
spin4
nuclear quadrupole moment
datum otkrića1958
parity+

decay modeintensity
β (β decay)100%

155Pm

Maseni broj155
broj neutrona94
relative atomic mass
154,928136951 ± 0,000005065 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
41,5 ± 0,2 s
spin5/2
nuclear quadrupole moment
datum otkrića1982
parity-

decay modeintensity
β (β decay)100%

156Pm

Maseni broj156
broj neutrona95
relative atomic mass
155,931114059 ± 0,000001275 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
27,4 ± 0,5 s
spin4
nuclear quadrupole moment
datum otkrića1986
parity+

decay modeintensity
β (β decay)100%

157Pm

Maseni broj157
broj neutrona96
relative atomic mass
156,933121298 ± 0,000007521 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,56 ± 0,1 s
spin5/2
nuclear quadrupole moment
datum otkrića1987
parity-

decay modeintensity
β (β decay)100%

158Pm

Maseni broj158
broj neutrona97
relative atomic mass
157,936546948 ± 0,000000953 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,8 ± 0,5 s
spin0
nuclear quadrupole moment
0
datum otkrića1987
parity+

decay modeintensity
β (β decay)100%

159Pm

Maseni broj159
broj neutrona98
relative atomic mass
158,939286409 ± 0,000010777 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,49 ± 0,13 s
spin5/2
nuclear quadrupole moment
datum otkrića1998
parity-

decay modeintensity
β (β decay)100%

160Pm

Maseni broj160
broj neutrona99
relative atomic mass
159,943215272 ± 0,0000022 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
725 ± 57 ms
spin6
nuclear quadrupole moment
datum otkrića2012
parity-

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

161Pm

Maseni broj161
broj neutrona100
relative atomic mass
160,946229837 ± 0,0000097 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,05 ± 0,15 s
spin5/2
nuclear quadrupole moment
datum otkrića2012
parity-

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

162Pm

Maseni broj162
broj neutrona101
relative atomic mass
161,950574 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
630 ± 180 ms
spin2
nuclear quadrupole moment
datum otkrića2012
parity+

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

163Pm

Maseni broj163
broj neutrona102
relative atomic mass
162,953881 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
255 ± 25 ms
spin5/2
nuclear quadrupole moment
datum otkrića2012
parity-

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

164Pm

Maseni broj164
broj neutrona103
relative atomic mass
163,958819 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5
nuclear quadrupole moment
datum otkrića2018
parity-

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

165Pm

Maseni broj165
broj neutrona104
relative atomic mass
164,96278 ± 0,000537 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
datum otkrića2018
parity-

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Promethium
Promethium spectrum visible

historija

otkrivač ili izumiteljJ.A. Marinsky, L.E. Glendenin, C.D. Coryell
mjesto otkrićaUnited States
datum otkrića1945
EtimologijaNamed for the Greek god, Prometheus.
pronunciationpro-MEE-thi-em (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
natural abundance (ljudsko tijelo)
0 %
natural abundance (Meteoroidi)
0 %
natural abundance (Sunce)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants

1s1.2042
2p4.2562
2s16.0296
3d13.9018
3p19.4461
3s19.8154
4d33.26
4f37.866
4p30.3768
4s29.3604
5p44.586
5s42.1645
6s51.6046