Küryûm

Küryûm (Cm)

chemical element with the atomic number of 96
Atomic Number96
Atomic Weight247
Hejmara baristeyî231
Group
Period7
Blockf
Proton96 p+
Notron135 n0
Kareva96 e-
Animated Bohr model of Cm (Küryûm)

Physical Property

Atomic Radius
molar volume
18,28 cm³/mol
Covalent Radius
166 pm
Metallic Radius
ionic radius
97 pm
Crystal Radius
111 pm
Van der Waals radius
245 pm
density
13,51 g/cm³

Chemical Property

wize
proton affinity
electron affinity
ionization energy
ionization energy of Cm (Küryûm)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
386 kJ/mol
Kareva
electron shell2, 8, 18, 32, 25, 9, 2
Bohr model: Cm (Küryûm)
valence electron2
Lewis structure: Cm (Küryûm)
electron configuration[Rn] 5f7 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f7 6d1 7s2
Enhanced Bohr model of Cm (Küryûm)
Orbital Diagram of Cm (Küryûm)
oxidation number3, 4, 5, 6
electronegativity
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
1.618,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearancesilvery metallic, glows purple in the dark
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureSimple Hexagonal ()
lattice constant
Lattice Anglesπ/2, π/2, 2 π/3
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Leza dengê
classification
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number40
Mendeleev Number28
Pettifor Number41
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
144 ± 25 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
60
Neutron Mass Absorption
quantum number9D2
space group194 (P63/mmc)

Isotopes of Curium

Stable Isotopes0
Unstable Isotopes22
Natural Isotopes0

231Cm

Hejmara baristeyî231
neutron number135
Giraniya atomê
231,050746 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê
parity+

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

232Cm

Hejmara baristeyî232
neutron number136
Giraniya atomê
232,04974 ± 0,000216 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

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

233Cm

Hejmara baristeyî233
neutron number137
Giraniya atomê
233,050771485 ± 0,000087059 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
27 ± 10 s
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2001
parity+

decay modeintensity
α (α emission)20%
β+ (β+ decay; β+ = ϵ + e+)80%

234Cm

Hejmara baristeyî234
neutron number138
Giraniya atomê
234,050158568 ± 0,000018333 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
52 ± 9 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2001
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)71%
α (α emission)27%
SF (spontaneous fission)2%

235Cm

Hejmara baristeyî235
neutron number139
Giraniya atomê
235,051545 ± 0,00011 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
7 ± 3 m
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1981
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)4%

236Cm

Hejmara baristeyî236
neutron number140
Giraniya atomê
236,051372112 ± 0,000018931 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
6,8 ± 0,8 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)82%
α (α emission)18%
SF (spontaneous fission)

237Cm

Hejmara baristeyî237
neutron number141
Giraniya atomê
237,052868988 ± 0,00007987 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2002
parity+

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

238Cm

Hejmara baristeyî238
neutron number142
Giraniya atomê
238,053081606 ± 0,000013133 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,2 ± 0,4 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1994
parity+

decay modeintensity
ϵ (electron capture)
α (α emission)3.84%
SF (spontaneous fission)0.048%

239Cm

Hejmara baristeyî239
neutron number143
Giraniya atomê
239,054908519 ± 0,000161107 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,5 ± 0,4 h
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1952
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)6.2%

240Cm

Hejmara baristeyî240
neutron number144
Giraniya atomê
240,055528233 ± 0,000002045 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
30,4 ± 3,7 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1949
parity+

decay modeintensity
α (α emission)100%
ϵ (electron capture)
SF (spontaneous fission)3.9%

241Cm

Hejmara baristeyî241
neutron number145
Giraniya atomê
241,057651218 ± 0,000001725 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
32,8 ± 0,2 d
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1952
parity+

decay modeintensity
ϵ (electron capture)99%
α (α emission)1%

242Cm

Hejmara baristeyî242
neutron number146
Giraniya atomê
242,058834187 ± 0,000001224 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
162,8 ± 0,2 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1949
parity+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)6.2%
34Si1.1%
+ (double β+ decay)

243Cm

Hejmara baristeyî243
neutron number147
Giraniya atomê
243,061387329 ± 0,000001605 Da
g-factor
0,16 ± 0,032
natural abundance
radioactivity☢️ radioactive element
half-life
29,1 ± 0,1 y
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1950
parity+

decay modeintensity
α (α emission)100%
ϵ (electron capture)0.29%
SF (spontaneous fission)5.3%

244Cm

Hejmara baristeyî244
neutron number148
Giraniya atomê
244,062750622 ± 0,000001187 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
18,11 ± 0,03 y
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1950
parity+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)1.37%

245Cm

Hejmara baristeyî245
neutron number149
Giraniya atomê
245,065491047 ± 0,000001233 Da
g-factor
0,14285714285714 ± 0,028571428571429
natural abundance
radioactivity☢️ radioactive element
half-life
8,25 ± 0,07 ky
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1954
parity+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)6.1%

246Cm

Hejmara baristeyî246
neutron number150
Giraniya atomê
246,067222016 ± 0,000001637 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4,706 ± 0,04 ky
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1954
parity+

decay modeintensity
α (α emission)99.97385%
SF (spontaneous fission)0.02615%

247Cm

Hejmara baristeyî247
neutron number151
Giraniya atomê
247,070352678 ± 0,000004076 Da
g-factor
0,08 ± 0,015555555555556
natural abundance
radioactivity☢️ radioactive element
half-life
15,6 ± 0,5 My
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1954
parity-

decay modeintensity
α (α emission)100%

248Cm

Hejmara baristeyî248
neutron number152
Giraniya atomê
248,072349086 ± 0,000002531 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
348 ± 6 ky
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1956
parity+

decay modeintensity
α (α emission)91.61%
SF (spontaneous fission)8.39%
(double β decay)

249Cm

Hejmara baristeyî249
neutron number153
Giraniya atomê
249,075953992 ± 0,000002545 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
64,15 ± 0,03 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1956
parity+

decay modeintensity
β (β decay)100%

250Cm

Hejmara baristeyî250
neutron number154
Giraniya atomê
250,078357541 ± 0,000011029 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1966
parity+

decay modeintensity
SF (spontaneous fission)74%
α (α emission)
β (β decay)

251Cm

Hejmara baristeyî251
neutron number155
Giraniya atomê
251,082284988 ± 0,000024367 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
16,8 ± 0,2 m
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1978
parity+

decay modeintensity
β (β decay)100%

252Cm

Hejmara baristeyî252
neutron number156
Giraniya atomê
252,08487 ± 0,00032 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

decay modeintensity
β (β decay)
α (α emission)
Cm-Fluoreszenz

dîrok

kaşîf an îcadkerG.T.Seaborg, R.A.James, A.Ghiorso
location of discoveryUnited States
dema îcadkirinê yan keşfê1944
BêjenasîNamed in honor of Pierre and Marie Curie.
pronunciationKYOOR-i-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
natural abundance (Okyanûs)
natural abundance (human body)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Roj)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants