Einsteinium

Einsteinium (Es)

grundämne
Atomnummer99
Atommassa252
masstal239
Grupp
Period7
Blockf
Protoner99 p+
Neutroner140 n0
Electrons99 e-
Animated Bohrs atommodell of Es (Einsteinium)

Egenskaper

fysisk egenskap
atomradie
molvolym
kovalent radie
165 pm
Metallic Radius
ionic radius
111,6 pm
Crystal Radius
125,6 pm
Van der Waalsradie
245 pm
densitet
8,84 g/cm³
energi
proton affinity
Elektronaffinitet
joniseringsenergi
6,3676 eV/particle
joniseringsenergi of Es (Einsteinium)
ångbildningsvärme
smältvärme
Bildningsentalpi
133 kJ/mol
Electrons
electron shell2, 8, 18, 32, 29, 8, 2
Bohrs atommodell: Es (Einsteinium)
valenselektron2
Elektronformel: Es (Einsteinium)
elektronkonfiguration[Rn] 5f11 7s2
Enhanced Bohrs atommodell of Es (Einsteinium)
Orbital Diagram of Es (Einsteinium)
oxidationstal2, 3, 4
elektronegativitet
Electrophilicity
Phases
aggregationstillståndFast
Gas Phase
Kokpunkt
Smältpunkt
1 133,15 K
critical pressure
critical temperature
trippelpunkt
Visual
färg
Färglös
appearancesilver-colored
Brytningsindex
materialegenskap
Värmeledningsförmåga
termisk expansion
molar heat capacity
Specifik värmekapacitet
heat capacity ratio
electrical properties
type
elektrisk konduktivitet
resistivitet
supraledare
magnetism
type
magnetisk susceptibilitet (Mass)
magnetisk susceptibilitet (Molar)
magnetisk susceptibilitet (Volume)
magnetic ordering
Curiepunkten
Néel temperature
Structure
Kristallstruktur ()
Gitterkonstant
Lattice Angles
mekanisk materialegenskap
hårdhet
Kompressibilitet
skjuvmodul
Young's modulus
Poissons konstant
ljudhastighet
klassificering
KategoriAktinider, Actinides
CAS Group
IUPAC Group
Glawe Number43
Mendeleev Number34
Pettifor Number38
Geochemical Class
Goldschmidt classificationsynthetic
övrigt
Gas Basicity
Dipole Polarizability
118 ± 20 a₀
C6 Dispersion Coefficient
Allotropes
Träffyta
160
Neutron Mass Absorption
kvanttal5I15/2
rymdgrupp ()

Einsteiniumisotoper

Stabila isotoper0
Instabila isotoper20
Radioactive Isotopes20

239Es

natural abundanceRadioactive ☢️
relative atomic mass
239,06831 ± 0,000322 Da
masstal239
g-factor
Halveringstid
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum
Paritet-
239Es Decay Modes
decay modeIntensitet
α (α emission)%
β+ (β+ decay; β+ = ϵ + e+)%
SF (spontaneous fission)%

240Es

natural abundanceRadioactive ☢️
relative atomic mass
240,068949 ± 0,000393 Da
masstal240
g-factor
Halveringstid
6 ± 1,7 s
Spinn4
nuclear quadrupole moment
upptäcktsdatum2017
Paritet-
240Es Decay Modes
decay modeIntensitet
α (α emission)70%
β+ (β+ decay; β+ = ϵ + e+)30%
β+ SF (β+-delayed fission)0.16%

241Es

natural abundanceRadioactive ☢️
relative atomic mass
241,068592 ± 0,000248 Da
masstal241
g-factor
Halveringstid
5,1 ± 0,8 s
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1996
Paritet-
241Es Decay Modes
decay modeIntensitet
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)%

242Es

natural abundanceRadioactive ☢️
relative atomic mass
242,069567 ± 0,000276 Da
masstal242
g-factor
Halveringstid
17,8 ± 1,6 s
Spinn2
nuclear quadrupole moment
upptäcktsdatum1994
Paritet+
242Es Decay Modes
decay modeIntensitet
α (α emission)57%
β+ (β+ decay; β+ = ϵ + e+)43%
β+ SF (β+-delayed fission)0.6%

243Es

natural abundanceRadioactive ☢️
relative atomic mass
243,069508 ± 0,000222 Da
masstal243
g-factor
Halveringstid
22,1 ± 1,4 s
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1973
Paritet+
243Es Decay Modes
decay modeIntensitet
α (α emission)61%
β+ (β+ decay; β+ = ϵ + e+)%
SF (spontaneous fission)1%

244Es

natural abundanceRadioactive ☢️
relative atomic mass
244,070881 ± 0,000195 Da
masstal244
g-factor
Halveringstid
37 ± 4 s
Spinn6
nuclear quadrupole moment
upptäcktsdatum1973
Paritet+
244Es Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)95%
α (α emission)5%
β+ SF (β+-delayed fission)0.011%

245Es

natural abundanceRadioactive ☢️
relative atomic mass
245,071192 ± 0,000178 Da
masstal245
g-factor
Halveringstid
1,11 ± 0,06 m
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1967
Paritet-
245Es Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)51%
α (α emission)49%

246Es

natural abundanceRadioactive ☢️
relative atomic mass
246,072806474 ± 0,000096538 Da
masstal246
g-factor
Halveringstid
7,5 ± 0,5 m
Spinn4
nuclear quadrupole moment
upptäcktsdatum1954
Paritet-
246Es Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)90.1%
α (α emission)9.9%
β+ SF (β+-delayed fission)0.003%

247Es

natural abundanceRadioactive ☢️
relative atomic mass
247,073621929 ± 0,00002087 Da
masstal247
g-factor
Halveringstid
4,55 ± 0,26 m
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1967
Paritet+
247Es Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)93%
α (α emission)7%
SF (spontaneous fission)%

248Es

natural abundanceRadioactive ☢️
relative atomic mass
248,075469 ± 0,000056 Da
masstal248
g-factor
Halveringstid
24 ± 3 m
Spinn2
nuclear quadrupole moment
upptäcktsdatum1956
Paritet-
248Es Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.25%
β+ SF (β+-delayed fission)3.5%

249Es

natural abundanceRadioactive ☢️
relative atomic mass
249,076409 ± 0,000032 Da
masstal249
g-factor
Halveringstid
102,2 ± 0,6 m
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1956
Paritet+
249Es Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.57%

250Es

natural abundanceRadioactive ☢️
relative atomic mass
250,078611 ± 0,000107 Da
masstal250
g-factor
Halveringstid
8,6 ± 0,1 h
Spinn6
nuclear quadrupole moment
upptäcktsdatum1956
Paritet
250Es Decay Modes
decay modeIntensitet
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)%

251Es

natural abundanceRadioactive ☢️
relative atomic mass
251,079991431 ± 0,000005676 Da
masstal251
g-factor
Halveringstid
33 ± 1 h
Spinn3/2
nuclear quadrupole moment
upptäcktsdatum1956
Paritet-
251Es Decay Modes
decay modeIntensitet
ϵ (electron capture)99.5%
α (α emission)0.5%

252Es

natural abundanceRadioactive ☢️
relative atomic mass
252,082979173 ± 0,000053736 Da
masstal252
g-factor
Halveringstid
471,7 ± 1,9 d
Spinn4
nuclear quadrupole moment
upptäcktsdatum1956
Paritet+
252Es Decay Modes
decay modeIntensitet
α (α emission)78%
ϵ (electron capture)22%

253Es

natural abundanceRadioactive ☢️
relative atomic mass
253,084821241 ± 0,000001341 Da
masstal253
g-factor
1,1714285714286 ± 0,02
Halveringstid
20,47 ± 0,03 d
Spinn7/2
nuclear quadrupole moment
6,7 ± 0,8
upptäcktsdatum1954
Paritet+
253Es Decay Modes
decay modeIntensitet
α (α emission)100%
SF (spontaneous fission)8.7%

254Es

natural abundanceRadioactive ☢️
relative atomic mass
254,088024337 ± 0,000003152 Da
masstal254
g-factor
Halveringstid
275,7 ± 0,5 d
Spinn7
nuclear quadrupole moment
upptäcktsdatum1954
Paritet+
254Es Decay Modes
decay modeIntensitet
α (α emission)100%
ϵ (electron capture)%
β− (β− decay)1.74%
SF (spontaneous fission)3%

255Es

natural abundanceRadioactive ☢️
relative atomic mass
255,090273504 ± 0,000011612 Da
masstal255
g-factor
Halveringstid
39,8 ± 1,2 d
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1954
Paritet+
255Es Decay Modes
decay modeIntensitet
β− (β− decay)92%
α (α emission)8%
SF (spontaneous fission)0.0041%

256Es

natural abundanceRadioactive ☢️
relative atomic mass
256,093597 ± 0,000107 Da
masstal256
g-factor
Halveringstid
7,6 h
Spinn7
nuclear quadrupole moment
upptäcktsdatum1976
Paritet+
256Es Decay Modes
decay modeIntensitet
β− (β− decay)100%
β− SF (β−-delayed fission)0.002%

257Es

natural abundanceRadioactive ☢️
relative atomic mass
257,095979 ± 0,000441 Da
masstal257
g-factor
Halveringstid
7,7 ± 0,2 d
Spinn7/2
nuclear quadrupole moment
upptäcktsdatum1987
Paritet+
257Es Decay Modes
decay modeIntensitet
β− (β− decay)100%
α (α emission)%

258Es

natural abundanceRadioactive ☢️
relative atomic mass
258,09952 ± 0,00043 Da
masstal258
g-factor
Halveringstid
Spinn
nuclear quadrupole moment
upptäcktsdatum
Paritet
258Es Decay Modes
decay modeIntensitet
β− (β− decay)%
α (α emission)%
Einsteinium

historia

upptäckare eller uppfinnareArgonne, Los Alamos, U of Calif
fyndplatsUnited States
upptäcktsdatum1952
etymologiNamed in honor of the scientist Albert Einstein.
uttaline-STINE-i-em (engelska)

Sources

Förekomst
Abundance in Earth's crust
Abundance in Oceans
Abundance in Human Body
0 %
Abundance in Meteor
0 %
Abundance in Sun
0 %
Abundance in Universe
0 %

Nuclear Screening Constants

Einsteinium on ChemicalAid