Einsteinij[um]

Einsteinij[um] (Es)

hemijski element s atomskim brojem 99
Atomic Number99
Atomic Weight252
Maseni broj239
Group
Period7
Blockf
Proton99 p+
Neutron140 n0
Elektron99 e-
Animated Bohrov model atoma of Es (Einsteinij[um])

Physical Property

Atomski Radijus
Molarni volumen
covalent radius
165 pm
Metallic Radius
Ionski radijus
111,6 pm
Crystal Radius
125,6 pm
Van der Waalsov radijus
245 pm
gustoća
8,84 g/cm³

Chemical Property

energija
proton affinity
electron affinity
ionization energy
ionization energy of Es (Einsteinij[um])
Toplota isparavanja
toplota topljenja
standard enthalpy of formation
133 kJ/mol
Elektron
electron shell2, 8, 18, 32, 29, 8, 2
Bohrov model atoma: Es (Einsteinij[um])
Valentni elektron2
Lewis structure: Es (Einsteinij[um])
electron configuration[Rn] 5f11 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f11 7s2
Enhanced Bohrov model atoma of Es (Einsteinij[um])
Orbital Diagram of Es (Einsteinij[um])
oksidacijsko stanje2, 3, 4
Elektronegativnost
Electrophilicity Index
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
Melting Point
1.133,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Colorless
appearancesilver-colored
Indeks prelamanja
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Specifična električna provodljivost
electrical resistivity
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
shear modulus
Young's modulus
Poisson's ratio
Brzina zvuka
klasifikacija
CategoryActinides, Actinides
CAS Group
IUPAC Group
Glawe Number43
Mendeleev Number34
Pettifor Number38
Geochemical Class
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
118 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
160
Neutron Mass Absorption
Kvantni brojevi5I15/2
space group ()

Isotopes of Einsteinium

Stable Isotopes0
Unstable Isotopes20
Natural Isotopes0

239Es

Maseni broj239
broj neutrona140
relative atomic mass
239,06831 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3/2
nuclear quadrupole moment
datum otkrića
parity-

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

240Es

Maseni broj240
broj neutrona141
relative atomic mass
240,068949 ± 0,000393 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6 ± 1,7 s
spin4
nuclear quadrupole moment
datum otkrića2017
parity-

decay modeintensity
α (α emission)70%
β+ (β+ decay; β+ = ϵ + e+)30%
β+ SF (β+-delayed fission)0.16%

241Es

Maseni broj241
broj neutrona142
relative atomic mass
241,068592 ± 0,000248 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,1 ± 0,8 s
spin3/2
nuclear quadrupole moment
datum otkrića1996
parity-

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

242Es

Maseni broj242
broj neutrona143
relative atomic mass
242,069567 ± 0,000276 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
17,8 ± 1,6 s
spin2
nuclear quadrupole moment
datum otkrića1994
parity+

decay modeintensity
α (α emission)57%
β+ (β+ decay; β+ = ϵ + e+)43%
β+ SF (β+-delayed fission)0.6%

243Es

Maseni broj243
broj neutrona144
relative atomic mass
243,069508 ± 0,000222 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
22,1 ± 1,4 s
spin7/2
nuclear quadrupole moment
datum otkrića1973
parity+

decay modeintensity
α (α emission)61%
β+ (β+ decay; β+ = ϵ + e+)
SF (spontaneous fission)1%

244Es

Maseni broj244
broj neutrona145
relative atomic mass
244,070881 ± 0,000195 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
37 ± 4 s
spin6
nuclear quadrupole moment
datum otkrića1973
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)95%
α (α emission)5%
β+ SF (β+-delayed fission)0.011%

245Es

Maseni broj245
broj neutrona146
relative atomic mass
245,071192 ± 0,000178 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,11 ± 0,06 m
spin3/2
nuclear quadrupole moment
datum otkrića1967
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)51%
α (α emission)49%

246Es

Maseni broj246
broj neutrona147
relative atomic mass
246,072806474 ± 0,000096538 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,5 ± 0,5 m
spin4
nuclear quadrupole moment
datum otkrića1954
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)90.1%
α (α emission)9.9%
β+ SF (β+-delayed fission)0.003%

247Es

Maseni broj247
broj neutrona148
relative atomic mass
247,073621929 ± 0,00002087 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,55 ± 0,26 m
spin7/2
nuclear quadrupole moment
datum otkrića1967
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)93%
α (α emission)7%
SF (spontaneous fission)

248Es

Maseni broj248
broj neutrona149
relative atomic mass
248,075469 ± 0,000056 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
24 ± 3 m
spin2
nuclear quadrupole moment
datum otkrića1956
parity-

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.25%
β+ SF (β+-delayed fission)3.5%

249Es

Maseni broj249
broj neutrona150
relative atomic mass
249,076409 ± 0,000032 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
102,2 ± 0,6 m
spin7/2
nuclear quadrupole moment
datum otkrića1956
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.57%

250Es

Maseni broj250
broj neutrona151
relative atomic mass
250,078611 ± 0,000107 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,6 ± 0,1 h
spin6
nuclear quadrupole moment
datum otkrića1956
parity

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

251Es

Maseni broj251
broj neutrona152
relative atomic mass
251,079991431 ± 0,000005676 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
33 ± 1 h
spin3/2
nuclear quadrupole moment
datum otkrića1956
parity-

decay modeintensity
ϵ (electron capture)99.5%
α (α emission)0.5%

252Es

Maseni broj252
broj neutrona153
relative atomic mass
252,082979173 ± 0,000053736 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
471,7 ± 1,9 d
spin4
nuclear quadrupole moment
datum otkrića1956
parity+

decay modeintensity
α (α emission)78%
ϵ (electron capture)22%

253Es

Maseni broj253
broj neutrona154
relative atomic mass
253,084821241 ± 0,000001341 Da
g-factor
1,1714285714286 ± 0,02
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20,47 ± 0,03 d
spin7/2
nuclear quadrupole moment
6,7 ± 0,8
datum otkrića1954
parity+

decay modeintensity
α (α emission)100%
SF (spontaneous fission)8.7%

254Es

Maseni broj254
broj neutrona155
relative atomic mass
254,088024337 ± 0,000003152 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
275,7 ± 0,5 d
spin7
nuclear quadrupole moment
datum otkrića1954
parity+

decay modeintensity
α (α emission)100%
ϵ (electron capture)
β (β decay)1.74%
SF (spontaneous fission)3%

255Es

Maseni broj255
broj neutrona156
relative atomic mass
255,090273504 ± 0,000011612 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
39,8 ± 1,2 d
spin7/2
nuclear quadrupole moment
datum otkrića1954
parity+

decay modeintensity
β (β decay)92%
α (α emission)8%
SF (spontaneous fission)0.0041%

256Es

Maseni broj256
broj neutrona157
relative atomic mass
256,093597 ± 0,000107 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,6 h
spin7
nuclear quadrupole moment
datum otkrića1976
parity+

decay modeintensity
β (β decay)100%
β SF (β-delayed fission)0.002%

257Es

Maseni broj257
broj neutrona158
relative atomic mass
257,095979 ± 0,000441 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,7 ± 0,2 d
spin7/2
nuclear quadrupole moment
datum otkrića1987
parity+

decay modeintensity
β (β decay)100%
α (α emission)

258Es

Maseni broj258
broj neutrona159
relative atomic mass
258,09952 ± 0,00043 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin
nuclear quadrupole moment
datum otkrića
parity

decay modeintensity
β (β decay)
α (α emission)
Einsteinium

historija

otkrivač ili izumiteljArgonne, Los Alamos, U of Calif
mjesto otkrićaUnited States
datum otkrića1952
EtimologijaNamed in honor of the scientist Albert Einstein.
pronunciationine-STINE-i-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