Ферми

Ферми (Fm)

chemical element with the atomic number of 100
Atomic Number100
Atomic Weight257
mass number241
Group
Period7
Blockf
Протон100 p+
Нейтрон141 n0
Электрон100 e-
Animated Атăмăн Бор моделĕ of Fm (Ферми)

Физикăлла Палăрăм

Атом Радиусĕ
molar volume
Ковалентла радиус
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
density

Chemical Property

Энерги
proton affinity
electron affinity
ionization energy
ionization energy of Fm (Ферми)
Пăсланнин тата конденсациленнин пайлавла ăшши
Шăраннин пайлавла ăшши
standard enthalpy of formation
Электрон
electron shell2, 8, 18, 32, 30, 8, 2
Атăмăн Бор моделĕ: Fm (Ферми)
valence electron2
Lewis structure: Fm (Ферми)
electron configuration[Rn] 5f12 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f12 7s2
Enhanced Атăмăн Бор моделĕ of Fm (Ферми)
Orbital Diagram of Fm (Ферми)
Оксидлав капашĕ2, 3
Электронегативлăх
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
Виççĕлле пăнчă
appearance
Тӗс
Colorless
appearance
Хуçăлу кăтартăшĕ
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
Пайлавла электро хирĕçтăру
superconductivity
Магнетизм
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
structure
Crystal Structure{ERROR}
Решетке константти
Lattice Angles
mechanical property
hardness
bulk modulus
shear modulus
Юнг модулĕ
Poisson's ratio
Сасă хăвăртлăхĕ
classification
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number44
Mendeleev Number36
Pettifor Number37
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
Поляризациленеслĕх
C6 Dispersion Coefficient
allotrope
Neutron cross section
5 800
Neutron Mass Absorption
quantum number3H6
space group ()

Isotopes of Fermium

Stable Isotopes0
Unstable Isotopes20
Natural Isotopes0

241Fm

mass number241
neutron number141
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
730 ± 60 us
spin5/2
nuclear quadrupole moment
time of discovery or invention2008
Ыт-тĕкел (физика)+

decay modeintensity
SF (spontaneous fission)
α (α emission)14%
β+ (β+ decay; β+ = ϵ + e+)12%

242Fm

mass number242
neutron number142
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
800 ± 200 us
spin0
nuclear quadrupole moment
0
time of discovery or invention1975
Ыт-тĕкел (физика)+

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

243Fm

mass number243
neutron number143
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
231 ± 9 ms
spin7/2
nuclear quadrupole moment
time of discovery or invention1981
Ыт-тĕкел (физика)-

decay modeintensity
α (α emission)91%
SF (spontaneous fission)9%
β+ (β+ decay; β+ = ϵ + e+)

244Fm

mass number244
neutron number144
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
3,12 ± 0,08 ms
spin0
nuclear quadrupole moment
0
time of discovery or invention1967
Ыт-тĕкел (физика)+

decay modeintensity
SF (spontaneous fission)97%
β+ (β+ decay; β+ = ϵ + e+)2%
α (α emission)1%

245Fm

mass number245
neutron number145
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
4,2 ± 1,3 s
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1967
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)7%
SF (spontaneous fission)0.3%

246Fm

mass number246
neutron number146
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
1,54 ± 0,04 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1966
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)93.2%
SF (spontaneous fission)6.8%
ϵ (electron capture)1.3%

247Fm

mass number247
neutron number147
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
31 ± 1 s
spin7/2
nuclear quadrupole moment
time of discovery or invention1967
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)64%
β+ (β+ decay; β+ = ϵ + e+)

248Fm

mass number248
neutron number148
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
34,5 ± 1,2 s
spin0
nuclear quadrupole moment
0
time of discovery or invention1958
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)
SF (spontaneous fission)0.1%

249Fm

mass number249
neutron number149
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
1,6 ± 0,1 m
spin7/2
nuclear quadrupole moment
time of discovery or invention1960
Ыт-тĕкел (физика)+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)
α (α emission)33%

250Fm

mass number250
neutron number150
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
31 ± 1,1 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1954
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)0.0069%
ϵ (electron capture)

251Fm

mass number251
neutron number151
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
5,3 ± 0,08 h
spin9/2
nuclear quadrupole moment
time of discovery or invention1957
Ыт-тĕкел (физика)-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)98.2%
α (α emission)1.8%

252Fm

mass number252
neutron number152
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
25,39 ± 0,04 h
spin0
nuclear quadrupole moment
0
time of discovery or invention1956
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)0.0023%
+ (double β+ decay)

253Fm

mass number253
neutron number153
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
3 ± 0,12 d
spin1/2
nuclear quadrupole moment
0
time of discovery or invention1957
Ыт-тĕкел (физика)+

decay modeintensity
ϵ (electron capture)88%
α (α emission)12%

254Fm

mass number254
neutron number154
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
3,24 ± 0,002 h
spin0
nuclear quadrupole moment
0
time of discovery or invention1954
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)99.9408%
SF (spontaneous fission)0.0592%

255Fm

mass number255
neutron number155
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
20,07 ± 0,07 h
spin7/2
nuclear quadrupole moment
time of discovery or invention1954
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)2.4%

256Fm

mass number256
neutron number156
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
157,1 ± 1,3 m
spin0
nuclear quadrupole moment
0
time of discovery or invention1955
Ыт-тĕкел (физика)+

decay modeintensity
SF (spontaneous fission)91.9%
α (α emission)8.1%

257Fm

mass number257
neutron number157
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
100,5 ± 0,2 d
spin9/2
nuclear quadrupole moment
time of discovery or invention1964
Ыт-тĕкел (физика)+

decay modeintensity
α (α emission)99.79%
SF (spontaneous fission)0.21%

258Fm

mass number258
neutron number158
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
370 ± 14 us
spin0
nuclear quadrupole moment
0
time of discovery or invention1971
Ыт-тĕкел (физика)+

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

259Fm

mass number259
neutron number159
Relative Atomic Mass
g-factor
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
1,5 ± 0,2 s
spin
nuclear quadrupole moment
time of discovery or invention1980
Ыт-тĕкел (физика)

decay modeintensity
SF (spontaneous fission)100%

260Fm

mass number260
neutron number160
Relative Atomic Mass
g-factor
0
natural abundance
Радиоактивлă аркану☢️ radioactive element
Çурма аркану тапхăрĕ
spin0
nuclear quadrupole moment
0
time of discovery or invention
Ыт-тĕкел (физика)+

decay modeintensity
SF (spontaneous fission)
Fermium-Ytterbium Alloy
Electron shell 100 Fermium

истори

discoverer or inventorArgonne, Los Alamos, U of Calif
location of discoveryUnited States
time of discovery or invention1953
etymologyNamed in honor of the scientist Enrico Fermi.
pronunciationFER-mi-em (акӑлчан)

source

Abundance
Abundance in Earth's crust
natural abundance (океан)
natural abundance (Этем ӳт-пĕвĕ)
0 %
natural abundance (meteoroid)
0 %
natural abundance (Хĕвел)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants