Einsteinij[um] (Es)

hemijski element s atomskim brojem 99

Atomic Number	99
Atomic Weight	252
Maseni broj	239

Group
Period	7
Block	f

Proton	99 p⁺
Neutron	140 n⁰
Elektron	99 e^-

Animated Bohrov model atoma of Es (Einsteinij[um])

Physical Property

Atomski Radijus
Molarni volumen
covalent radius	165 pm 140 pm
Metallic Radius
Ionski radijus	111,6 pm
Crystal Radius	125,6 pm
Van der Waalsov radijus	245 pm 329,9 pm
gustoća	8,84 g/cm³

Chemical Property

energija

proton affinity
electron affinity
ionization energy	6,3676 eV/particle 12,2 eV/particle 22,7 eV/particle 38,8 eV/particle 54,1 eV/particle 71 eV/particle 97 eV/particle 112,9 eV/particle 137 eV/particle 157 eV/particle 180 eV/particle 206 eV/particle 231 eV/particle 252 eV/particle 270 eV/particle 294 eV/particle 317 eV/particle 342 eV/particle 367 eV/particle 398 eV/particle 421 eV/particle 576 eV/particle 606 eV/particle 638 eV/particle 672 eV/particle 705 eV/particle 738 eV/particle 790 eV/particle 824 eV/particle 861 eV/particle 895 eV/particle 1.060 eV/particle 1.100 eV/particle 1.140 eV/particle 1.180 eV/particle 1.310 eV/particle 1.360 eV/particle 1.480 eV/particle 1.530 eV/particle 1.690 eV/particle 1.780 eV/particle 1.870 eV/particle 1.950 eV/particle 2.040 eV/particle 2.130 eV/particle 2.220 eV/particle 2.300 eV/particle 2.410 eV/particle 2.490 eV/particle 2.580 eV/particle 2.680 eV/particle 2.760 eV/particle 2.900 eV/particle 3.294 eV/particle 3.370 eV/particle 3.449 eV/particle 3.535 eV/particle 3.616 eV/particle 3.694 eV/particle 3.866 eV/particle 3.947 eV/particle 4.038 eV/particle 4.120 eV/particle 4.456 eV/particle 4.537 eV/particle 4.620 eV/particle 4.700 eV/particle 5.260 eV/particle 5.350 eV/particle 5.600 eV/particle 5.690 eV/particle 8.960 eV/particle 9.140 eV/particle 9.330 eV/particle 9.530 eV/particle 9.720 eV/particle 9.910 eV/particle 10.400 eV/particle 10.590 eV/particle 10.810 eV/particle 11.010 eV/particle 11.570 eV/particle 11.740 eV/particle 11.930 eV/particle 12.110 eV/particle 13.810 eV/particle 14.030 eV/particle 14.460 eV/particle 14.700 eV/particle 29.700 eV/particle 30.100 eV/particle 30.700 eV/particle 31.100 eV/particle 37.400 eV/particle 38.100 eV/particle 38.900 eV/particle 39.451,4 eV/particle 154.328 eV/particle 156.926 eV/particle

Toplota isparavanja
toplota topljenja
standard enthalpy of formation	133 kJ/mol
Elektron

electron shell	2, 8, 18, 32, 29, 8, 2

Valentni elektron	2 ⓘ

electron configuration	[Rn] 5f¹¹ 7s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d¹⁰ 6p⁶ 5f¹¹ 7s²

oksidacijsko stanje	2, 3, 4
Elektronegativnost	0.21427
Electrophilicity Index
fundamental state of matter

agregatno stanje	Solid
gaseous state of matter
Boiling Point
Melting Point	1.133,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja	Colorless #ffffff #b31fd4 #b31fd4
appearance	silver-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
Category	Actinides, Actinides
CAS Group
IUPAC Group
Glawe Number	43
Mendeleev Number	34
Pettifor Number	38
Geochemical Class
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	118 ± 20 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section	160
Neutron Mass Absorption
Kvantni brojevi	5I15/2
space group	()

Isotopes of Einsteinium

Stable Isotopes	0
Unstable Isotopes	20
Natural Isotopes	0

²³⁹Es

Maseni broj	239
broj neutrona	140
Relative Atomic Mass	239,06831 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3/2
nuclear quadrupole moment
datum otkrića
parity	-

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

²⁴⁰Es

Maseni broj	240
broj neutrona	141
Relative Atomic Mass	240,068949 ± 0,000393 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	6 ± 1,7 s
spin	4
nuclear quadrupole moment
datum otkrića	2017
parity	-

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

²⁴¹Es

Maseni broj	241
broj neutrona	142
Relative Atomic Mass	241,068592 ± 0,000248 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	5,1 ± 0,8 s
spin	3/2
nuclear quadrupole moment
datum otkrića	1996
parity	-

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

²⁴²Es

Maseni broj	242
broj neutrona	143
Relative Atomic Mass	242,069567 ± 0,000276 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	17,8 ± 1,6 s
spin	2
nuclear quadrupole moment
datum otkrića	1994
parity	+

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

²⁴³Es

Maseni broj	243
broj neutrona	144
Relative Atomic Mass	243,069508 ± 0,000222 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	22,1 ± 1,4 s
spin	7/2
nuclear quadrupole moment
datum otkrića	1973
parity	+

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

²⁴⁴Es

Maseni broj	244
broj neutrona	145
Relative Atomic Mass	244,070881 ± 0,000195 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	37 ± 4 s
spin	6
nuclear quadrupole moment
datum otkrića	1973
parity	+

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

²⁴⁵Es

Maseni broj	245
broj neutrona	146
Relative Atomic Mass	245,071192 ± 0,000178 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,11 ± 0,06 m
spin	3/2
nuclear quadrupole moment
datum otkrića	1967
parity	-

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

²⁴⁶Es

Maseni broj	246
broj neutrona	147
Relative Atomic Mass	246,072806474 ± 0,000096538 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,5 ± 0,5 m
spin	4
nuclear quadrupole moment
datum otkrića	1954
parity	-

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

²⁴⁷Es

Maseni broj	247
broj neutrona	148
Relative Atomic Mass	247,073621929 ± 0,00002087 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	4,55 ± 0,26 m
spin	7/2
nuclear quadrupole moment
datum otkrića	1967
parity	+

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

²⁴⁸Es

Maseni broj	248
broj neutrona	149
Relative Atomic Mass	248,075469 ± 0,000056 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	24 ± 3 m
spin	2
nuclear quadrupole moment
datum otkrića	1956
parity	-

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

²⁴⁹Es

Maseni broj	249
broj neutrona	150
Relative Atomic Mass	249,076409 ± 0,000032 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	102,2 ± 0,6 m
spin	7/2
nuclear quadrupole moment
datum otkrića	1956
parity	+

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

²⁵⁰Es

Maseni broj	250
broj neutrona	151
Relative Atomic Mass	250,078611 ± 0,000107 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	8,6 ± 0,1 h
spin	6
nuclear quadrupole moment
datum otkrića	1956
parity

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

²⁵¹Es

Maseni broj	251
broj neutrona	152
Relative Atomic Mass	251,079991431 ± 0,000005676 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	33 ± 1 h
spin	3/2
nuclear quadrupole moment
datum otkrića	1956
parity	-

decay mode	intensity
ϵ (electron capture)	99.5%
α (α emission)	0.5%

²⁵²Es

Maseni broj	252
broj neutrona	153
Relative Atomic Mass	252,082979173 ± 0,000053736 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	471,7 ± 1,9 d
spin	4
nuclear quadrupole moment
datum otkrića	1956
parity	+

decay mode	intensity
α (α emission)	78%
ϵ (electron capture)	22%

²⁵³Es

Maseni broj	253
broj neutrona	154
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
spin	7/2
nuclear quadrupole moment	6,7 ± 0,8
datum otkrića	1954
parity	+

decay mode	intensity
α (α emission)	100%
SF (spontaneous fission)	8.7%

²⁵⁴Es

Maseni broj	254
broj neutrona	155
Relative Atomic Mass	254,088024337 ± 0,000003152 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	275,7 ± 0,5 d
spin	7
nuclear quadrupole moment
datum otkrića	1954
parity	+

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

²⁵⁵Es

Maseni broj	255
broj neutrona	156
Relative Atomic Mass	255,090273504 ± 0,000011612 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	39,8 ± 1,2 d
spin	7/2
nuclear quadrupole moment
datum otkrića	1954
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	92%
α (α emission)	8%
SF (spontaneous fission)	0.0041%

²⁵⁶Es

Maseni broj	256
broj neutrona	157
Relative Atomic Mass	256,093597 ± 0,000107 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,6 h
spin	7
nuclear quadrupole moment
datum otkrića	1976
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
β⁻ SF (β⁻-delayed fission)	0.002%

²⁵⁷Es

Maseni broj	257
broj neutrona	158
Relative Atomic Mass	257,095979 ± 0,000441 Da
g-factor
natural abundance
Radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,7 ± 0,2 d
spin	7/2
nuclear quadrupole moment
datum otkrića	1987
parity	+

decay mode	intensity
β⁻ (β⁻ decay)	100%
α (α emission)

²⁵⁸Es

Maseni broj	258
broj neutrona	159
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 mode	intensity
β⁻ (β⁻ decay)
α (α emission)

historija

otkrivač ili izumitelj	Argonne, Los Alamos, U of Calif
mjesto otkrića	United States
datum otkrića	1952
Etimologija	Named in honor of the scientist Albert Einstein.
pronunciation	ine-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

Einsteinij[um] on ChemicalAid

Australian Educational Vocabulary ID	scot/3516
CAS broj	7429-92-7
ChEBI ID	33393
ChemSpider ID	22356
DSSTOX compound identifier	DTXCID90147796
DSSTox substance ID	DTXSID30225305
Den Store Danske ID	einsteinium
Dizionario delle Scienze Fisiche ID	einsteinio
Elhuyar ZTH ID	022704
Encyclopedia of China ID (Second Edition)	190938
Encyclopædia Britannica Online ID	science/einsteinium
Encyclopædia Universalis ID	einsteinium
French Vikidia ID	Einsteinium
GND	4151415-4
Gran Enciclopèdia Catalana ID	0100433
Great Russian Encyclopedia Online ID	4940532
ID na KBpediji	Einsteinium
InChIKey	CKBRQZNRCSJHFT-UHFFFAOYSA-N
InChl	InChI=1S/Es
MeSH ID	D004540
OmegaWiki određeno značenje	157713
PubChem ID (CID)	23913
Römpp online ID	RD-05-00380
Store norske leksikon ID	einsteinium
Treccani ID	einstenio
UNII	WV8XL34X3O
USGS Thesaurus ID	1445
WordNet 3.1 Synset ID	14661000-n
broj na Freebaseu	/m/028bh5n

Einsteinij[um] (Es)

Physical Property

Chemical Property

other

Isotopes of Einsteinium

239Es

240Es

241Es

242Es

243Es

244Es

245Es

246Es

247Es

248Es

249Es

250Es

251Es

252Es

253Es

254Es

255Es

256Es

257Es

258Es

historija

izvor

Nuclear Screening Constants

²³⁹Es

²⁴⁰Es

²⁴¹Es

²⁴²Es

²⁴³Es

²⁴⁴Es

²⁴⁵Es

²⁴⁶Es

²⁴⁷Es

²⁴⁸Es

²⁴⁹Es

²⁵⁰Es

²⁵¹Es

²⁵²Es

²⁵³Es

²⁵⁴Es

²⁵⁵Es

²⁵⁶Es

²⁵⁷Es

²⁵⁸Es