Astat (At)

chemical element with symbol At and atomic number 85

Atomski broj	85
Relativna atomska masa	210
Maseni broj	191

Skupina	17
Perioda	6
Blok	p

proton	85 p⁺
neutron	106 n⁰
elektron	85 e^-

Animated Bohrov model atoma of At (Astat)

Physical Property

Atomski Radijus	247 pm
Molni volumen
Kovalentni Radijus	147 pm 138 pm 138 pm 150 pm
Metallic Radius
Ionski radijus	62 pm
Crystal Radius	76 pm
Van der Waals radius	202 pm 251 pm 202 pm 475 pm
gustoća	7 g/cm³

Kemijsko Svojstvo

energija

proton affinity
Elektronski afinitet	2,8 eV/particle
ionization energy	9,31751 eV/particle 17,88 eV/particle 26,58 eV/particle 39,65 eV/particle 50,39 eV/particle 72 eV/particle 85,1 eV/particle 130,1 eV/particle 149 eV/particle 169 eV/particle 192,1 eV/particle 212 eV/particle 236 eV/particle 263 eV/particle 287 eV/particle 311 eV/particle 335 eV/particle 452 eV/particle 481 eV/particle 510 eV/particle 540 eV/particle 600 eV/particle 630 eV/particle 720 eV/particle 750 eV/particle 790 eV/particle 860 eV/particle 920 eV/particle 990 eV/particle 1.050 eV/particle 1.120 eV/particle 1.180 eV/particle 1.250 eV/particle 1.320 eV/particle 1.380 eV/particle 1.450 eV/particle 1.510 eV/particle 1.590 eV/particle 1.650 eV/particle 1.948 eV/particle 2.007 eV/particle 2.071 eV/particle 2.139 eV/particle 2.203 eV/particle 2.266 eV/particle 2.373 eV/particle 2.439 eV/particle 2.510 eV/particle 2.576 eV/particle 2.841 eV/particle 2.905 eV/particle 2.977 eV/particle 3.042 eV/particle 3.312 eV/particle 3.388 eV/particle 3.573 eV/particle 3.649 eV/particle 5.980 eV/particle 6.122 eV/particle 6.279 eV/particle 6.445 eV/particle 6.604 eV/particle 6.759 eV/particle 7.068 eV/particle 7.230 eV/particle 7.410 eV/particle 7.570 eV/particle 8.030 eV/particle 8.180 eV/particle 8.330 eV/particle 8.480 eV/particle 9.330 eV/particle 9.500 eV/particle 9.830 eV/particle 9.990 eV/particle 21.210 eV/particle 21.600 eV/particle 22.030 eV/particle 22.420 eV/particle 25.580 eV/particle 26.080 eV/particle 26.730 eV/particle 27.139 eV/particle 107.923,4 eV/particle 109.886 eV/particle

Toplina isparivanja
toplina taljenja
standard enthalpy of formation
elektron

Elektronska ljuska	2, 8, 18, 32, 18, 7

valence electron	7 ⓘ

electron configuration	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 4f¹⁴ 5d¹⁰ 6s² 6p⁵

Oksidacijski broj	-1, 1, 3, 5, 7
Elektronegativnost	14,1 eV/particle 0.19131 2.2
Electrophilicity Index	2,8161454412824063 eV/particle
fundamental state of matter

agregatno stanje	Čvrsto
gaseous state of matter
Vrelište
Talište	575,15 K
critical pressure
critical temperature
Trojna točka
appearance
boja	Srebrna #ff1493 #754f45 #754f45
appearance	unknown, probably metallic
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
molar heat capacity
Specifični toplinski kapacitet
heat capacity ratio
electrical properties
type
electrical conductivity
Električna otpornost i provodnost
Supravodljivost
Magnetizam
type
Magnetna susceptibilnost (Mass)
Magnetna susceptibilnost (Molar)
Magnetna susceptibilnost (Volume)
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna struktura	()
lattice constant
Lattice Angles
mechanical property
Tvrdoća
bulk modulus
shear modulus
Youngov modul elastičnosti
Poissonov omjer
brzina zvuka
classification
Kategorija	Halogeni elementi, Halogens
CAS Group	VIIB
IUPAC Group	VIIA
Glawe Number	98
Mendeleev Number	110
Pettifor Number	96
Geochemical Class	U/Th decay series
Goldschmidt classification	synthetic

other

Gas Basicity
polarizability	42 ± 4 a₀
C6 Dispersion Coefficient	351 a₀
allotrope
Nuklearni udarni presjek
Neutron Mass Absorption
Kvantni brojevi	2P3/2
space group	()

Isotopes of Astatine

Stabilni izotopi	0
Nestabilni izotopi	39
Natural Isotopes	0

¹⁹¹At

Maseni broj	191
neutron number	106
Relativna atomska masa	191,004148081 ± 0,000017287 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,1 ± 0,8 ms
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	2003
Parnost	+

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

¹⁹²At

Maseni broj	192
neutron number	107
Relativna atomska masa	192,003140912 ± 0,000029922 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	11,5 ± 0,6 ms
spin	3
nuclear quadrupole moment
vrijeme otkrića ili izuma	2006
Parnost	+

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ SF (β⁺-delayed fission)	0.51%

¹⁹³At

Maseni broj	193
neutron number	108
Relativna atomska masa	192,999927725 ± 0,000023222 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	29 ± 5 ms
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	2003
Parnost	+

decay mode	intensity
α (α emission)	100%

¹⁹⁴At

Maseni broj	194
neutron number	109
Relativna atomska masa	193,999230816 ± 0,00002523 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	286 ± 7 ms
spin	5
nuclear quadrupole moment
vrijeme otkrića ili izuma	2009
Parnost	-

decay mode	intensity
α (α emission)	100%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	8.3%
β⁺ SF (β⁺-delayed fission)	0.032%

¹⁹⁵At

Maseni broj	195
neutron number	110
Relativna atomska masa	194,99627448 ± 0,000010276 Da
g-factor	3,2 ± 0,1
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	290 ± 20 ms
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	1999
Parnost	+

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

¹⁹⁶At

Maseni broj	196
neutron number	111
Relativna atomska masa	195,995799034 ± 0,000032458 Da
g-factor	1,24 ± 0,046666666666667
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	377 ± 4 ms
spin	3
nuclear quadrupole moment	−0,6 ± 0,4
vrijeme otkrića ili izuma	1967
Parnost	+

decay mode	intensity
α (α emission)	97.5%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)
β⁺ SF (β⁺-delayed fission)	0.009%

¹⁹⁷At

Maseni broj	197
neutron number	112
Relativna atomska masa	196,993177353 ± 0,00000857 Da
g-factor	0,85111111111111 ± 0,015555555555556
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	388,2 ± 5,6 ms
spin	9/2
nuclear quadrupole moment	−1,2 ± 0,6
vrijeme otkrića ili izuma	1967
Parnost	-

decay mode	intensity
α (α emission)	96.1%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	3.9%

¹⁹⁸At

Maseni broj	198
neutron number	113
Relativna atomska masa	197,992797864 ± 0,000005265 Da
g-factor	1,34 ± 0,046666666666667
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	4,47 ± 0,05 s
spin	3
nuclear quadrupole moment	−0,6 ± 0,3
vrijeme otkrića ili izuma	1967
Parnost	+

decay mode	intensity
α (α emission)	97%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

¹⁹⁹At

Maseni broj	199
neutron number	114
Relativna atomska masa	198,990527715 ± 0,00000578 Da
g-factor	0,87555555555556 ± 0,015555555555556
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,02 ± 0,12 s
spin	9/2
nuclear quadrupole moment	−1 ± 0,5
vrijeme otkrića ili izuma	1967
Parnost	-

decay mode	intensity
α (α emission)	89%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)

²⁰⁰At

Maseni broj	200
neutron number	115
Relativna atomska masa	199,990351099 ± 0,000026264 Da
g-factor	1,4266666666667 ± 0,05
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	43,2 ± 0,9 s
spin	3
nuclear quadrupole moment	−0,5 ± 0,5
vrijeme otkrića ili izuma	1963
Parnost	+

decay mode	intensity
α (α emission)	52%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	48%

²⁰¹At

Maseni broj	201
neutron number	116
Relativna atomska masa	200,988417058 ± 0,000008786 Da
g-factor	0,89111111111111 ± 0,015555555555556
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	85,2 ± 1,6 s
spin	9/2
nuclear quadrupole moment	−1 ± 0,5
vrijeme otkrića ili izuma	1963
Parnost	-

decay mode	intensity
α (α emission)	71%
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	29%

²⁰²At

Maseni broj	202
neutron number	117
Relativna atomska masa	201,988625686 ± 0,000029631 Da
g-factor	1,38 ± 0,053333333333333
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	184 ± 1 s
spin	3
nuclear quadrupole moment	−0,5 ± 0,3
vrijeme otkrića ili izuma	1961
Parnost	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	88%
α (α emission)	12%

²⁰³At

Maseni broj	203
neutron number	118
Relativna atomska masa	202,986942904 ± 0,000011404 Da
g-factor	0,88888888888889 ± 0,015555555555556
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,4 ± 0,2 m
spin	9/2
nuclear quadrupole moment	−0,7 ± 0,4
vrijeme otkrića ili izuma	1951
Parnost	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	69%
α (α emission)	31%

²⁰⁴At

Maseni broj	204
neutron number	119
Relativna atomska masa	203,987251393 ± 0,000024335 Da
g-factor	0,68857142857143 ± 0,025714285714286
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	9,12 ± 0,11 m
spin	7
nuclear quadrupole moment	−0,6 ± 0,3
vrijeme otkrića ili izuma	1961
Parnost	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	96.2%
α (α emission)	3.8%

²⁰⁵At

Maseni broj	205
neutron number	120
Relativna atomska masa	204,986060546 ± 0,000012941 Da
g-factor	0,90888888888889 ± 0,015555555555556
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	26,9 ± 0,8 m
spin	9/2
nuclear quadrupole moment	−0,6 ± 0,3
vrijeme otkrića ili izuma	1951
Parnost	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	90%
α (α emission)	10%

²⁰⁶At

Maseni broj	206
neutron number	121
Relativna atomska masa	205,986645768 ± 0,000014523 Da
g-factor	0,72833333333333 ± 0,028333333333333
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	30,6 ± 0,8 m
spin	6
nuclear quadrupole moment	−0,4 ± 0,2
vrijeme otkrića ili izuma	1961
Parnost

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.1%
α (α emission)	0.9%

²⁰⁷At

Maseni broj	207
neutron number	122
Relativna atomska masa	206,985799715 ± 0,000013318 Da
g-factor	0,91777777777778 ± 0,015555555555556
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,81 ± 0,03 h
spin	9/2
nuclear quadrupole moment	−0,5 ± 0,3
vrijeme otkrića ili izuma	1951
Parnost	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	90%
α (α emission)	10%

²⁰⁸At

Maseni broj	208
neutron number	123
Relativna atomska masa	207,986613011 ± 0,000009577 Da
g-factor	0,74333333333333 ± 0,03
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,63 ± 0,03 h
spin	6
nuclear quadrupole moment	−0,4 ± 0,3
vrijeme otkrića ili izuma	1950
Parnost	+

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.45%
α (α emission)	0.55%

²⁰⁹At

Maseni broj	209
neutron number	124
Relativna atomska masa	208,986168701 ± 0,000005094 Da
g-factor	0,91555555555556 ± 0,015555555555556
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	5,42 ± 0,05 h
spin	9/2
nuclear quadrupole moment	−0,4 ± 0,2
vrijeme otkrića ili izuma	1951
Parnost	-

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	96.1%
α (α emission)	3.9%

²¹⁰At

Maseni broj	210
neutron number	125
Relativna atomska masa	209,987147423 ± 0,000008261 Da
g-factor	0,944 ± 0,032
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	8,1 ± 0,4 h
spin	5
nuclear quadrupole moment	−0,4 ± 0,2
vrijeme otkrića ili izuma	1949
Parnost

decay mode	intensity
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	99.825%
α (α emission)	0.175%

²¹¹At

Maseni broj	211
neutron number	126
Relativna atomska masa	210,987496226 ± 0,000002929 Da
g-factor	0,92 ± 0,0088888888888889
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	7,214 ± 0,007 h
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1940
Parnost	-

decay mode	intensity
ϵ (electron capture)	58.2%
α (α emission)	41.8%

²¹²At

Maseni broj	212
neutron number	127
Relativna atomska masa	211,990737301 ± 0,000002559 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	314 ± 3 ms
spin	1
nuclear quadrupole moment
vrijeme otkrića ili izuma	1954
Parnost	-

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

²¹³At

Maseni broj	213
neutron number	128
Relativna atomska masa	212,992936593 ± 0,000005258 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	125 ± 6 ns
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1968
Parnost	-

decay mode	intensity
α (α emission)	100%

²¹⁴At

Maseni broj	214
neutron number	129
Relativna atomska masa	213,996372331 ± 0,000004274 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	558 ± 10 ns
spin	1
nuclear quadrupole moment
vrijeme otkrića ili izuma	1949
Parnost	-

decay mode	intensity
α (α emission)	100%

²¹⁵At

Maseni broj	215
neutron number	130
Relativna atomska masa	214,998651002 ± 0,000007116 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	37 ± 3 us
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1944
Parnost	-

decay mode	intensity
α (α emission)	100%

²¹⁶At

Maseni broj	216
neutron number	131
Relativna atomska masa	216,002422643 ± 0,000003837 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	300 ± 30 us
spin	1
nuclear quadrupole moment
vrijeme otkrića ili izuma	1948
Parnost	-

decay mode	intensity
α (α emission)	100%
β⁻ (β⁻ decay)
ϵ (electron capture)

²¹⁷At

Maseni broj	217
neutron number	132
Relativna atomska masa	217,004717794 ± 0,000005368 Da
g-factor	0,84444444444444 ± 0,044444444444444
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	32,6 ± 0,3 ms
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1947
Parnost	-

decay mode	intensity
α (α emission)	99.992%
β⁻ (β⁻ decay)	0.008%

²¹⁸At

Maseni broj	218
neutron number	133
Relativna atomska masa	218,008695941 ± 0,000012349 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	1,28 ± 0,06 s
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1943
Parnost	-

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

²¹⁹At

Maseni broj	219
neutron number	134
Relativna atomska masa	219,011160587 ± 0,000003474 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	56 ± 3 s
spin	9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1953
Parnost	-

decay mode	intensity
α (α emission)	93.6%
β⁻ (β⁻ decay)	6.4%

²²⁰At

Maseni broj	220
neutron number	135
Relativna atomska masa	220,015433 ± 0,000015 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	3,71 ± 0,04 m
spin	3
nuclear quadrupole moment
vrijeme otkrića ili izuma	1989
Parnost	-

decay mode	intensity
β⁻ (β⁻ decay)	92%
α (α emission)	8%

²²¹At

Maseni broj	221
neutron number	136
Relativna atomska masa	221,018017 ± 0,000015 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,3 ± 0,2 m
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1989
Parnost	-

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

²²²At

Maseni broj	222
neutron number	137
Relativna atomska masa	222,022494 ± 0,000017 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	54 ± 10 s
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma	1989
Parnost

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

²²³At

Maseni broj	223
neutron number	138
Relativna atomska masa	223,025151 ± 0,000015 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	50 ± 7 s
spin	3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma	1989
Parnost	-

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

²²⁴At

Maseni broj	224
neutron number	139
Relativna atomska masa	224,029749 ± 0,000024 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada	2,5 ± 1,5 m
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	2010
Parnost	+

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

²²⁵At

Maseni broj	225
neutron number	140
Relativna atomska masa	225,032528 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	2010
Parnost	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

²²⁶At

Maseni broj	226
neutron number	141
Relativna atomska masa	226,037209 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	2
nuclear quadrupole moment
vrijeme otkrića ili izuma	2010
Parnost	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

²²⁷At

Maseni broj	227
neutron number	142
Relativna atomska masa	227,040183 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	2010
Parnost	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

²²⁸At

Maseni broj	228
neutron number	143
Relativna atomska masa	228,04496 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	3
nuclear quadrupole moment
vrijeme otkrića ili izuma	2010
Parnost	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

²²⁹At

Maseni broj	229
neutron number	144
Relativna atomska masa	229,048191 ± 0,000429 Da
g-factor
natural abundance
radioaktivnost	☢️ radioactive element
Vrijeme poluraspada
spin	1/2
nuclear quadrupole moment	0
vrijeme otkrića ili izuma	2010
Parnost	+

decay mode	intensity
β⁻ (β⁻ decay)
β⁻ n (β⁻-delayed neutron emission)

povijest

otkrio/izumio	D.R.Corson, K.R.MacKenzie, E.Segré
location of discovery	United States
vrijeme otkrića ili izuma	1940
Etimologija	Greek: astatos (unstable).
pronunciation	AS-teh-teen (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
natural abundance (ocean)
natural abundance (tijelo)	0 %
natural abundance (meteoroid)	0 %
natural abundance (Sunce)
Zastupljenost u svemiru	0 %

Nuclear Screening Constants

1	s	1.6446
2	p	4.5524
2	s	22.3324
3	d	13.4155
3	p	23.5024
3	s	24.6481
4	d	37.9504
4	f	37.7596
4	p	36.516
4	s	35.6644
5	d	58.661
5	p	53.96
5	s	52.0665
6	p	69.8368
6	s	67.7002

Astat on ChemicalAid

Australian Educational Vocabulary ID	scot/1850
Brockhaus Enzyklopädie online ID	astat
CAS registarski broj	7440-68-8
ChEBI ID	30415
DSSTOX compound identifier	DTXCID40147882
DSSTox substance ID	DTXSID40225391
Den Store Danske ID	astat
Encyclopedia of China ID (Second Edition)	191040
Encyclopædia Universalis ID	astate
FAST ID	819270
Freebase ID	/m/027t9kn
GND identifikator	4143236-8
Gran Enciclopèdia Catalana ID	0005881
Great Russian Encyclopedia Online ID	1835401
ID oznaka teme na Quori	Astatine
InChI	InChI=1S/At
InChIKey	RYXHOMYVWAEKHL-UHFFFAOYSA-N
KBpedia ID	Astatine
LCCN	sh85008844
MeSH ID	D001246
Namuwiki ID	아스타틴
National Library of Israel J9U ID	987007294954905171
OpenAlex ID	C531082785
PSH ID	5815
PubChem ID	5460479
Semantic Scholar topic ID	992086
Store norske leksikon ID	astat
Treccani ID	astato
USGS Thesaurus ID	1398
WordNet 3.1 Synset ID	14653739-n
YSO ID	28791
značenje prema OmegaWiki	155974

Astat (At)

Physical Property

Kemijsko Svojstvo

other

Isotopes of Astatine

191At

192At

193At

194At

195At

196At

197At

198At

199At

200At

201At

202At

203At

204At

205At

206At

207At

208At

209At

210At

211At

212At

213At

214At

215At

216At

217At

218At

219At

220At

221At

222At

223At

224At

225At

226At

227At

228At

229At

povijest

source

Nuclear Screening Constants

¹⁹¹At

¹⁹²At

¹⁹³At

¹⁹⁴At

¹⁹⁵At

¹⁹⁶At

¹⁹⁷At

¹⁹⁸At

¹⁹⁹At

²⁰⁰At

²⁰¹At

²⁰²At

²⁰³At

²⁰⁴At

²⁰⁵At

²⁰⁶At

²⁰⁷At

²⁰⁸At

²⁰⁹At

²¹⁰At

²¹¹At

²¹²At

²¹³At

²¹⁴At

²¹⁵At

²¹⁶At

²¹⁷At

²¹⁸At

²¹⁹At

²²⁰At

²²¹At

²²²At

²²³At

²²⁴At

²²⁵At

²²⁶At

²²⁷At

²²⁸At

²²⁹At