Einsteini

Einsteini (Es)

chemical element with the atomic number of 99
Atomic Number99
Atomic Weight252
Rhif màs239
Group
Period7
Blockf
Proton99 p+
Niwtron140 n0
Electron99 e-
Animated Bohr model of Es (Einsteini)

Nodwedd Ffisegol

Atomic Radius
molar volume
covalent radius
165 pm
Metallic Radius
ionic radius
111.6 pm
Crystal Radius
125.6 pm
Van der Waals radius
245 pm
density
8.84 g/cm³

Nodwedd Gemegol

egni
proton affinity
electron affinity
ionization energy
ionization energy of Es (Einsteini)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
133 kJ/mol
Electron
plisgyn yr electron2, 8, 18, 32, 29, 8, 2
Bohr model: Es (Einsteini)
valence electron2
Lewis structure: Es (Einsteini)
trefn yr electronnau[Rn] 5f11 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 5f11 7s2
Enhanced Bohr model of Es (Einsteini)
Orbital Diagram of Es (Einsteini)
Cyflwr ocsidiad2, 3, 4
Electronegatifedd
Electrophilicity Index
cyflwr sylfaenol mater
cyflwr materSolid
gaseous state of matter
Boiling Point
Melting Point
1,133.15 K
critical pressure
critical temperature
triple point
appearance
lliw
Colorless
appearancesilver-colored
Mynegrif plygiant
nodwedd ffisegol gwrthrych
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
dargludedd trydanol
Gwrthedd
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
strwythur
Crystal Structure ()
lattice constant
Lattice Angles
nodwedd mecanyddol deunyddiau
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
speed of sound
classification
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
quantum number5I15/2
space group ()

Isotopes of Einsteinium

Stable Isotopes0
Unstable Isotopes20
Natural Isotopes0

239Es

Rhif màs239
neutron number140
relative atomic mass
239.06831 ± 0.000322 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin3/2
nuclear quadrupole moment
dyddiad darganfod
parity-

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

240Es

Rhif màs240
neutron number141
relative atomic mass
240.068949 ± 0.000393 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
6 ± 1.7 s
spin4
nuclear quadrupole moment
dyddiad darganfod2017
parity-

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

241Es

Rhif màs241
neutron number142
relative atomic mass
241.068592 ± 0.000248 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
5.1 ± 0.8 s
spin3/2
nuclear quadrupole moment
dyddiad darganfod1996
parity-

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

242Es

Rhif màs242
neutron number143
relative atomic mass
242.069567 ± 0.000276 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
17.8 ± 1.6 s
spin2
nuclear quadrupole moment
dyddiad darganfod1994
parity+

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

243Es

Rhif màs243
neutron number144
relative atomic mass
243.069508 ± 0.000222 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
22.1 ± 1.4 s
spin7/2
nuclear quadrupole moment
dyddiad darganfod1973
parity+

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

244Es

Rhif màs244
neutron number145
relative atomic mass
244.070881 ± 0.000195 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
37 ± 4 s
spin6
nuclear quadrupole moment
dyddiad darganfod1973
parity+

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

245Es

Rhif màs245
neutron number146
relative atomic mass
245.071192 ± 0.000178 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
1.11 ± 0.06 m
spin3/2
nuclear quadrupole moment
dyddiad darganfod1967
parity-

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

246Es

Rhif màs246
neutron number147
relative atomic mass
246.072806474 ± 0.000096538 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.5 ± 0.5 m
spin4
nuclear quadrupole moment
dyddiad darganfod1954
parity-

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

247Es

Rhif màs247
neutron number148
relative atomic mass
247.073621929 ± 0.00002087 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
4.55 ± 0.26 m
spin7/2
nuclear quadrupole moment
dyddiad darganfod1967
parity+

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

248Es

Rhif màs248
neutron number149
relative atomic mass
248.075469 ± 0.000056 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
24 ± 3 m
spin2
nuclear quadrupole moment
dyddiad darganfod1956
parity-

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

249Es

Rhif màs249
neutron number150
relative atomic mass
249.076409 ± 0.000032 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
102.2 ± 0.6 m
spin7/2
nuclear quadrupole moment
dyddiad darganfod1956
parity+

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

250Es

Rhif màs250
neutron number151
relative atomic mass
250.078611 ± 0.000107 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
8.6 ± 0.1 h
spin6
nuclear quadrupole moment
dyddiad darganfod1956
parity

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

251Es

Rhif màs251
neutron number152
relative atomic mass
251.079991431 ± 0.000005676 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
33 ± 1 h
spin3/2
nuclear quadrupole moment
dyddiad darganfod1956
parity-

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

252Es

Rhif màs252
neutron number153
relative atomic mass
252.082979173 ± 0.000053736 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
471.7 ± 1.9 d
spin4
nuclear quadrupole moment
dyddiad darganfod1956
parity+

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

253Es

Rhif màs253
neutron number154
relative atomic mass
253.084821241 ± 0.000001341 Da
g-factor
1.1714285714286 ± 0.02
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
20.47 ± 0.03 d
spin7/2
nuclear quadrupole moment
6.7 ± 0.8
dyddiad darganfod1954
parity+

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

254Es

Rhif màs254
neutron number155
relative atomic mass
254.088024337 ± 0.000003152 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
275.7 ± 0.5 d
spin7
nuclear quadrupole moment
dyddiad darganfod1954
parity+

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

255Es

Rhif màs255
neutron number156
relative atomic mass
255.090273504 ± 0.000011612 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
39.8 ± 1.2 d
spin7/2
nuclear quadrupole moment
dyddiad darganfod1954
parity+

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

256Es

Rhif màs256
neutron number157
relative atomic mass
256.093597 ± 0.000107 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.6 h
spin7
nuclear quadrupole moment
dyddiad darganfod1976
parity+

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

257Es

Rhif màs257
neutron number158
relative atomic mass
257.095979 ± 0.000441 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
7.7 ± 0.2 d
spin7/2
nuclear quadrupole moment
dyddiad darganfod1987
parity+

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

258Es

Rhif màs258
neutron number159
relative atomic mass
258.09952 ± 0.00043 Da
g-factor
natural abundance
Dadfeilio ymbelydrol☢️ elfen ymbelydrol
Hanner oes
spin
nuclear quadrupole moment
dyddiad darganfod
parity

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

hanes

darganfyddwr neu ddyfeisiwrArgonne, Los Alamos, U of Calif
man darganfodUnited States
dyddiad darganfod1952
geirdarddiadNamed in honor of the scientist Albert Einstein.
ynganiadine-STINE-i-em (Saesneg)

source

Abundance
Abundance in Earth's crust
natural abundance (cefnfor)
natural abundance (corff dynol)
0 %
natural abundance (Awyrfaen)
0 %
natural abundance (Haul)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants