Kurium (Cm)

chemical element with the atomic number of 96

Atomic Number	96
Atomic Weight	247
Nombor jisim	231

Group
Period	7
Block	f

proton	96 p⁺
neutron	135 n⁰
Elektron	96 e^-

Sifat Fizikal

Jejari Atom	276 pm
molar volume	18.28 cm³/mol
Jejari kovalen	166 pm 136 pm 169 pm
Metallic Radius
ionic radius	97 pm 85 pm 95 pm 114.7 pm
Crystal Radius	111 pm 99 pm 109 pm 128.7 pm
Jejari van der Waals	245 pm 332.6 pm
ketumpatan	13.51 g/cm³

Sifat Kimia

{ERROR}

tenaga

proton affinity
Pertalian elektron
ionization energy	5.9914 eV/particle 10 eV/particle 20.1 eV/particle 37.7 eV/particle 51 eV/particle 69.1 eV/particle 97 eV/particle 112 eV/particle 128 eV/particle 144 eV/particle 167 eV/particle 190 eV/particle 212 eV/particle 235 eV/particle 253 eV/particle 272 eV/particle 311 eV/particle 332 eV/particle 460 eV/particle 489 eV/particle 518 eV/particle 550 eV/particle 580 eV/particle 611 eV/particle 657 eV/particle 689 eV/particle 723 eV/particle 755 eV/particle 910 eV/particle 950 eV/particle 990 eV/particle 1,030 eV/particle 1,140 eV/particle 1,180 eV/particle 1,300 eV/particle 1,340 eV/particle 1,480 eV/particle 1,560 eV/particle 1,640 eV/particle 1,730 eV/particle 1,810 eV/particle 1,890 eV/particle 1,980 eV/particle 2,060 eV/particle 2,160 eV/particle 2,240 eV/particle 2,320 eV/particle 2,410 eV/particle 2,490 eV/particle 2,580 eV/particle 2,976 eV/particle 3,050 eV/particle 3,125 eV/particle 3,207 eV/particle 3,284 eV/particle 3,360 eV/particle 3,515 eV/particle 3,593 eV/particle 3,679 eV/particle 3,758 eV/particle 4,078 eV/particle 4,156 eV/particle 4,239 eV/particle 4,317 eV/particle 4,791 eV/particle 4,880 eV/particle 5,110 eV/particle 5,200 eV/particle 8,270 eV/particle 8,440 eV/particle 8,620 eV/particle 8,820 eV/particle 9,000 eV/particle 9,180 eV/particle 9,630 eV/particle 9,820 eV/particle 10,020 eV/particle 10,220 eV/particle 10,760 eV/particle 10,920 eV/particle 11,100 eV/particle 11,270 eV/particle 12,740 eV/particle 12,950 eV/particle 13,360 eV/particle 13,550 eV/particle 27,740 eV/particle 28,180 eV/particle 28,700 eV/particle 29,100 eV/particle 34,600 eV/particle 35,200 eV/particle 36,000 eV/particle 36,493 eV/particle 143,299.6 eV/particle 145,743 eV/particle

Entalpi pengewapan
entalpi pelakuran
standard enthalpy of formation	386 kJ/mol
Elektron

Petala elektron	2, 8, 18, 32, 25, 9, 2

Elektron valens	2 ⓘ

tatarajah elektron	[Rn] 5f⁷ 6d¹ 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f⁷ 6d¹ 7s²

Keadaan pengoksidaan	3, 4, 5, 6
Keelektronegatifan	0.17439
Electrophilicity Index
keadaan jirim asas

fasa jirim
gaseous state of matter
Boiling Point
Melting Point	1,618.15 K
critical pressure
critical temperature
triple point
rupa
warna	Black #ffffff #785ce3 #785ce3
rupa	silvery metallic, glows purple in the dark
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Kekonduksian elektrik
Kerintangan dan kekonduksian elektrik
Kesuperkonduksian
kemagnetan
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal Structure	{ERROR}
lattice constant
Lattice Angles	π/2, π/2, 2 π/3
mechanical property
hardness
Modulus pukal
shear modulus
Young's modulus
Nisbah Poisson
Kelajuan bunyi
pengelasan
Category	Actinides, Actinides
CAS Group
IUPAC Group
Glawe Number	40
Mendeleev Number	28
Pettifor Number	41
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	144 ± 25 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section	60
Neutron Mass Absorption
Nombor kuantum	9D2
space group	194 (P63/mmc)

Isotopes of Curium

Stable Isotopes	0
Unstable Isotopes	22
Natural Isotopes	0

²³¹Cm

Nombor jisim	231
nombor neutron	135
Jisim Atom Relatif	231.050746 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	3/2
nuclear quadrupole moment
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
α (α emission)

²³²Cm

Nombor jisim	232
nombor neutron	136
Jisim Atom Relatif	232.04974 ± 0.000216 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
α (α emission)

²³³Cm

Nombor jisim	233
nombor neutron	137
Jisim Atom Relatif	233.050771485 ± 0.000087059 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	27 ± 10 s
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	2001
parity	+

decay mode	Keamatan (fizik)
α (α emission)	20%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	80%

²³⁴Cm

Nombor jisim	234
nombor neutron	138
Jisim Atom Relatif	234.050158568 ± 0.000018333 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	52 ± 9 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	2001
parity	+

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

²³⁵Cm

Nombor jisim	235
nombor neutron	139
Jisim Atom Relatif	235.051545 ± 0.00011 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	7 ± 3 m
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1981
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
α (α emission)	4%

²³⁶Cm

Nombor jisim	236
nombor neutron	140
Jisim Atom Relatif	236.051372112 ± 0.000018931 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	6.8 ± 0.8 m
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	2010
parity	+

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

²³⁷Cm

Nombor jisim	237
nombor neutron	141
Jisim Atom Relatif	237.052868988 ± 0.00007987 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	2002
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
α (α emission)

²³⁸Cm

Nombor jisim	238
nombor neutron	142
Jisim Atom Relatif	238.053081606 ± 0.000013133 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.2 ± 0.4 h
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1994
parity	+

decay mode	Keamatan (fizik)
ϵ (electron capture)
α (α emission)	3.84%
SF (spontaneous fission)	0.048%

²³⁹Cm

Nombor jisim	239
nombor neutron	143
Jisim Atom Relatif	239.054908519 ± 0.000161107 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.5 ± 0.4 h
Spin	7/2
nuclear quadrupole moment
tarikh penemuan	1952
parity	-

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
α (α emission)	6.2%

²⁴⁰Cm

Nombor jisim	240
nombor neutron	144
Jisim Atom Relatif	240.055528233 ± 0.000002045 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	30.4 ± 3.7 d
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1949
parity	+

decay mode	Keamatan (fizik)
α (α emission)	100%
ϵ (electron capture)
SF (spontaneous fission)	3.9%

²⁴¹Cm

Nombor jisim	241
nombor neutron	145
Jisim Atom Relatif	241.057651218 ± 0.000001725 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	32.8 ± 0.2 d
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1952
parity	+

decay mode	Keamatan (fizik)
ϵ (electron capture)	99%
α (α emission)	1%

²⁴²Cm

Nombor jisim	242
nombor neutron	146
Jisim Atom Relatif	242.058834187 ± 0.000001224 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	162.8 ± 0.2 d
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1949
parity	+

decay mode	Keamatan (fizik)
α (α emission)	100%
SF (spontaneous fission)	6.2%
34Si	1.1%
2β⁺ (double β⁺ decay)

²⁴³Cm

Nombor jisim	243
nombor neutron	147
Jisim Atom Relatif	243.061387329 ± 0.000001605 Da
g-factor	0.16 ± 0.032
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	29.1 ± 0.1 y
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1950
parity	+

decay mode	Keamatan (fizik)
α (α emission)	100%
ϵ (electron capture)	0.29%
SF (spontaneous fission)	5.3%

²⁴⁴Cm

Nombor jisim	244
nombor neutron	148
Jisim Atom Relatif	244.062750622 ± 0.000001187 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	18.11 ± 0.03 y
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1950
parity	+

decay mode	Keamatan (fizik)
α (α emission)	100%
SF (spontaneous fission)	1.37%

²⁴⁵Cm

Nombor jisim	245
nombor neutron	149
Jisim Atom Relatif	245.065491047 ± 0.000001233 Da
g-factor	0.14285714285714 ± 0.028571428571429
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	8.25 ± 0.07 ky
Spin	7/2
nuclear quadrupole moment
tarikh penemuan	1954
parity	+

decay mode	Keamatan (fizik)
α (α emission)	100%
SF (spontaneous fission)	6.1%

²⁴⁶Cm

Nombor jisim	246
nombor neutron	150
Jisim Atom Relatif	246.067222016 ± 0.000001637 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	4.706 ± 0.04 ky
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1954
parity	+

decay mode	Keamatan (fizik)
α (α emission)	99.97385%
SF (spontaneous fission)	0.02615%

²⁴⁷Cm

Nombor jisim	247
nombor neutron	151
Jisim Atom Relatif	247.070352678 ± 0.000004076 Da
g-factor	0.08 ± 0.015555555555556
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	15.6 ± 0.5 My
Spin	9/2
nuclear quadrupole moment
tarikh penemuan	1954
parity	-

decay mode	Keamatan (fizik)
α (α emission)	100%

²⁴⁸Cm

Nombor jisim	248
nombor neutron	152
Jisim Atom Relatif	248.072349086 ± 0.000002531 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	348 ± 6 ky
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1956
parity	+

decay mode	Keamatan (fizik)
α (α emission)	91.61%
SF (spontaneous fission)	8.39%
2β⁻ (double β⁻ decay)

²⁴⁹Cm

Nombor jisim	249
nombor neutron	153
Jisim Atom Relatif	249.075953992 ± 0.000002545 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	64.15 ± 0.03 m
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1956
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

²⁵⁰Cm

Nombor jisim	250
nombor neutron	154
Jisim Atom Relatif	250.078357541 ± 0.000011029 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1966
parity	+

decay mode	Keamatan (fizik)
SF (spontaneous fission)	74%
α (α emission)
β⁻ (β⁻ decay)

²⁵¹Cm

Nombor jisim	251
nombor neutron	155
Jisim Atom Relatif	251.082284988 ± 0.000024367 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	16.8 ± 0.2 m
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	1978
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

²⁵²Cm

Nombor jisim	252
nombor neutron	156
Jisim Atom Relatif	252.08487 ± 0.00032 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)
α (α emission)

sejarah

penemu atau pereka	G.T.Seaborg, R.A.James, A.Ghiorso
tempat penemuan	United States
tarikh penemuan	1944
Etimologi	Named in honor of Pierre and Marie Curie.
sebutan	KYOOR-i-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust
natural abundance (lautan)
natural abundance (Tubuh manusia)	0 %
natural abundance (Meteoroid)	0 %
natural abundance (Matahari)	0 %
Abundance in Universe	0 %

Nuclear Screening Constants

Kurium on ChemicalAid

Kurium (Cm)

Sifat Fizikal

Sifat Kimia

other

Isotopes of Curium

231Cm

232Cm

233Cm

234Cm

235Cm

236Cm

237Cm

238Cm

239Cm

240Cm

241Cm

242Cm

243Cm

244Cm

245Cm

246Cm

247Cm

248Cm

249Cm

250Cm

251Cm

252Cm

sejarah

sumber

Nuclear Screening Constants

²³¹Cm

²³²Cm

²³³Cm

²³⁴Cm

²³⁵Cm

²³⁶Cm

²³⁷Cm

²³⁸Cm

²³⁹Cm

²⁴⁰Cm

²⁴¹Cm

²⁴²Cm

²⁴³Cm

²⁴⁴Cm

²⁴⁵Cm

²⁴⁶Cm

²⁴⁷Cm

²⁴⁸Cm

²⁴⁹Cm

²⁵⁰Cm

²⁵¹Cm

²⁵²Cm