Astat (At)

grundämne

Atomnummer	85
Atommassa	210
masstal	191

Grupp	17
Period	6
Block	p

Protoner	85 p⁺
Neutroner	106 n⁰
Electrons	85 e^-

Egenskaper

fysisk egenskap
atomradie	247 pm
molvolym
kovalent radie	147 pm 138 pm 138 pm 150 pm
Metallic Radius
ionic radius	62 pm
Crystal Radius	76 pm
Van der Waalsradie	202 pm 251 pm 202 pm 475 pm
densitet	7 g/cm³
energi
proton affinity
Elektronaffinitet	2,8 eV/particle
joniseringsenergi	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

ångbildningsvärme
smältvärme
Bildningsentalpi
Electrons
electron shell	2, 8, 18, 32, 18, 7

valenselektron	7

elektronkonfiguration	[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵

oxidationstal	-1, 1, 3, 5, 7
elektronegativitet	14,1 eV/particle 0.19131 2.2
Electrophilicity	2,8161454412824063 eV/particle
Phases
aggregationstillstånd	Fast
Gas Phase
Kokpunkt
Smältpunkt	575,15 K
critical pressure
critical temperature
trippelpunkt
Visual
färg	Silver #ff1493 #754f45 #754f45
appearance	unknown, probably metallic
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
Kategori	Halogener, 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
övrigt
Gas Basicity
Dipole Polarizability	42 ± 4 a₀
C6 Dispersion Coefficient	351 a₀
Allotropes
Träffyta
Neutron Mass Absorption
kvanttal	2P3/2
rymdgrupp	()

Astatisotoper

Stabila isotoper	0
Instabila isotoper	39
Radioactive Isotopes	39

¹⁹¹At

natural abundance	Radioactive ☢️
relative atomic mass	191,004148081 ± 0,000017287 Da
masstal	191
g-factor
Halveringstid	2,1 ± 0,8 ms
Spinn	1/2
nuclear quadrupole moment	0
upptäcktsdatum	2003
Paritet	+

¹⁹¹At Decay Modes

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

¹⁹²At

natural abundance	Radioactive ☢️
relative atomic mass	192,003140912 ± 0,000029922 Da
masstal	192
g-factor
Halveringstid	11,5 ± 0,6 ms
Spinn	3
nuclear quadrupole moment
upptäcktsdatum	2006
Paritet	+

¹⁹²At Decay Modes

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

¹⁹³At

natural abundance	Radioactive ☢️
relative atomic mass	192,999927725 ± 0,000023222 Da
masstal	193
g-factor
Halveringstid	29 ± 5 ms
Spinn	1/2
nuclear quadrupole moment	0
upptäcktsdatum	2003
Paritet	+

¹⁹³At Decay Modes

decay mode	Intensitet
α (α emission)	100%

¹⁹⁴At

natural abundance	Radioactive ☢️
relative atomic mass	193,999230816 ± 0,00002523 Da
masstal	194
g-factor
Halveringstid	286 ± 7 ms
Spinn	5
nuclear quadrupole moment
upptäcktsdatum	2009
Paritet	-

¹⁹⁴At Decay Modes

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

¹⁹⁵At

natural abundance	Radioactive ☢️
relative atomic mass	194,99627448 ± 0,000010276 Da
masstal	195
g-factor	3,2 ± 0,1
Halveringstid	290 ± 20 ms
Spinn	1/2
nuclear quadrupole moment	0
upptäcktsdatum	1999
Paritet	+

¹⁹⁵At Decay Modes

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

¹⁹⁶At

natural abundance	Radioactive ☢️
relative atomic mass	195,995799034 ± 0,000032458 Da
masstal	196
g-factor	1,24 ± 0,046666666666667
Halveringstid	377 ± 4 ms
Spinn	3
nuclear quadrupole moment	−0,6 ± 0,4
upptäcktsdatum	1967
Paritet	+

¹⁹⁶At Decay Modes

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

¹⁹⁷At

natural abundance	Radioactive ☢️
relative atomic mass	196,993177353 ± 0,00000857 Da
masstal	197
g-factor	0,85111111111111 ± 0,015555555555556
Halveringstid	388,2 ± 5,6 ms
Spinn	9/2
nuclear quadrupole moment	−1,2 ± 0,6
upptäcktsdatum	1967
Paritet	-

¹⁹⁷At Decay Modes

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

¹⁹⁸At

natural abundance	Radioactive ☢️
relative atomic mass	197,992797864 ± 0,000005265 Da
masstal	198
g-factor	1,34 ± 0,046666666666667
Halveringstid	4,47 ± 0,05 s
Spinn	3
nuclear quadrupole moment	−0,6 ± 0,3
upptäcktsdatum	1967
Paritet	+

¹⁹⁸At Decay Modes

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

¹⁹⁹At

natural abundance	Radioactive ☢️
relative atomic mass	198,990527715 ± 0,00000578 Da
masstal	199
g-factor	0,87555555555556 ± 0,015555555555556
Halveringstid	7,02 ± 0,12 s
Spinn	9/2
nuclear quadrupole moment	−1 ± 0,5
upptäcktsdatum	1967
Paritet	-

¹⁹⁹At Decay Modes

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

²⁰⁰At

natural abundance	Radioactive ☢️
relative atomic mass	199,990351099 ± 0,000026264 Da
masstal	200
g-factor	1,4266666666667 ± 0,05
Halveringstid	43,2 ± 0,9 s
Spinn	3
nuclear quadrupole moment	−0,5 ± 0,5
upptäcktsdatum	1963
Paritet	+

²⁰⁰At Decay Modes

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

²⁰¹At

natural abundance	Radioactive ☢️
relative atomic mass	200,988417058 ± 0,000008786 Da
masstal	201
g-factor	0,89111111111111 ± 0,015555555555556
Halveringstid	85,2 ± 1,6 s
Spinn	9/2
nuclear quadrupole moment	−1 ± 0,5
upptäcktsdatum	1963
Paritet	-

²⁰¹At Decay Modes

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

²⁰²At

natural abundance	Radioactive ☢️
relative atomic mass	201,988625686 ± 0,000029631 Da
masstal	202
g-factor	1,38 ± 0,053333333333333
Halveringstid	184 ± 1 s
Spinn	3
nuclear quadrupole moment	−0,5 ± 0,3
upptäcktsdatum	1961
Paritet	+

²⁰²At Decay Modes

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

²⁰³At

natural abundance	Radioactive ☢️
relative atomic mass	202,986942904 ± 0,000011404 Da
masstal	203
g-factor	0,88888888888889 ± 0,015555555555556
Halveringstid	7,4 ± 0,2 m
Spinn	9/2
nuclear quadrupole moment	−0,7 ± 0,4
upptäcktsdatum	1951
Paritet	-

²⁰³At Decay Modes

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

²⁰⁴At

natural abundance	Radioactive ☢️
relative atomic mass	203,987251393 ± 0,000024335 Da
masstal	204
g-factor	0,68857142857143 ± 0,025714285714286
Halveringstid	9,12 ± 0,11 m
Spinn	7
nuclear quadrupole moment	−0,6 ± 0,3
upptäcktsdatum	1961
Paritet	+

²⁰⁴At Decay Modes

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

²⁰⁵At

natural abundance	Radioactive ☢️
relative atomic mass	204,986060546 ± 0,000012941 Da
masstal	205
g-factor	0,90888888888889 ± 0,015555555555556
Halveringstid	26,9 ± 0,8 m
Spinn	9/2
nuclear quadrupole moment	−0,6 ± 0,3
upptäcktsdatum	1951
Paritet	-

²⁰⁵At Decay Modes

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

²⁰⁶At

natural abundance	Radioactive ☢️
relative atomic mass	205,986645768 ± 0,000014523 Da
masstal	206
g-factor	0,72833333333333 ± 0,028333333333333
Halveringstid	30,6 ± 0,8 m
Spinn	6
nuclear quadrupole moment	−0,4 ± 0,2
upptäcktsdatum	1961
Paritet

²⁰⁶At Decay Modes

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

²⁰⁷At

natural abundance	Radioactive ☢️
relative atomic mass	206,985799715 ± 0,000013318 Da
masstal	207
g-factor	0,91777777777778 ± 0,015555555555556
Halveringstid	1,81 ± 0,03 h
Spinn	9/2
nuclear quadrupole moment	−0,5 ± 0,3
upptäcktsdatum	1951
Paritet	-

²⁰⁷At Decay Modes

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

²⁰⁸At

natural abundance	Radioactive ☢️
relative atomic mass	207,986613011 ± 0,000009577 Da
masstal	208
g-factor	0,74333333333333 ± 0,03
Halveringstid	1,63 ± 0,03 h
Spinn	6
nuclear quadrupole moment	−0,4 ± 0,3
upptäcktsdatum	1950
Paritet	+

²⁰⁸At Decay Modes

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

²⁰⁹At

natural abundance	Radioactive ☢️
relative atomic mass	208,986168701 ± 0,000005094 Da
masstal	209
g-factor	0,91555555555556 ± 0,015555555555556
Halveringstid	5,42 ± 0,05 h
Spinn	9/2
nuclear quadrupole moment	−0,4 ± 0,2
upptäcktsdatum	1951
Paritet	-

²⁰⁹At Decay Modes

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

²¹⁰At

natural abundance	Radioactive ☢️
relative atomic mass	209,987147423 ± 0,000008261 Da
masstal	210
g-factor	0,944 ± 0,032
Halveringstid	8,1 ± 0,4 h
Spinn	5
nuclear quadrupole moment	−0,4 ± 0,2
upptäcktsdatum	1949
Paritet

²¹⁰At Decay Modes

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

²¹¹At

natural abundance	Radioactive ☢️
relative atomic mass	210,987496226 ± 0,000002929 Da
masstal	211
g-factor	0,92 ± 0,0088888888888889
Halveringstid	7,214 ± 0,007 h
Spinn	9/2
nuclear quadrupole moment
upptäcktsdatum	1940
Paritet	-

²¹¹At Decay Modes

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

²¹²At

natural abundance	Radioactive ☢️
relative atomic mass	211,990737301 ± 0,000002559 Da
masstal	212
g-factor
Halveringstid	314 ± 3 ms
Spinn	1
nuclear quadrupole moment
upptäcktsdatum	1954
Paritet	-

²¹²At Decay Modes

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

²¹³At

natural abundance	Radioactive ☢️
relative atomic mass	212,992936593 ± 0,000005258 Da
masstal	213
g-factor
Halveringstid	125 ± 6 ns
Spinn	9/2
nuclear quadrupole moment
upptäcktsdatum	1968
Paritet	-

²¹³At Decay Modes

decay mode	Intensitet
α (α emission)	100%

²¹⁴At

natural abundance	Radioactive ☢️
relative atomic mass	213,996372331 ± 0,000004274 Da
masstal	214
g-factor
Halveringstid	558 ± 10 ns
Spinn	1
nuclear quadrupole moment
upptäcktsdatum	1949
Paritet	-

²¹⁴At Decay Modes

decay mode	Intensitet
α (α emission)	100%

²¹⁵At

natural abundance	Radioactive ☢️
relative atomic mass	214,998651002 ± 0,000007116 Da
masstal	215
g-factor
Halveringstid	37 ± 3 us
Spinn	9/2
nuclear quadrupole moment
upptäcktsdatum	1944
Paritet	-

²¹⁵At Decay Modes

decay mode	Intensitet
α (α emission)	100%

²¹⁶At

natural abundance	Radioactive ☢️
relative atomic mass	216,002422643 ± 0,000003837 Da
masstal	216
g-factor
Halveringstid	300 ± 30 us
Spinn	1
nuclear quadrupole moment
upptäcktsdatum	1948
Paritet	-

²¹⁶At Decay Modes

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

²¹⁷At

natural abundance	Radioactive ☢️
relative atomic mass	217,004717794 ± 0,000005368 Da
masstal	217
g-factor	0,84444444444444 ± 0,044444444444444
Halveringstid	32,6 ± 0,3 ms
Spinn	9/2
nuclear quadrupole moment
upptäcktsdatum	1947
Paritet	-

²¹⁷At Decay Modes

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

²¹⁸At

natural abundance	Radioactive ☢️
relative atomic mass	218,008695941 ± 0,000012349 Da
masstal	218
g-factor
Halveringstid	1,28 ± 0,06 s
Spinn	2
nuclear quadrupole moment
upptäcktsdatum	1943
Paritet	-

²¹⁸At Decay Modes

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

²¹⁹At

natural abundance	Radioactive ☢️
relative atomic mass	219,011160587 ± 0,000003474 Da
masstal	219
g-factor
Halveringstid	56 ± 3 s
Spinn	9/2
nuclear quadrupole moment
upptäcktsdatum	1953
Paritet	-

²¹⁹At Decay Modes

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

²²⁰At

natural abundance	Radioactive ☢️
relative atomic mass	220,015433 ± 0,000015 Da
masstal	220
g-factor
Halveringstid	3,71 ± 0,04 m
Spinn	3
nuclear quadrupole moment
upptäcktsdatum	1989
Paritet	-

²²⁰At Decay Modes

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

²²¹At

natural abundance	Radioactive ☢️
relative atomic mass	221,018017 ± 0,000015 Da
masstal	221
g-factor
Halveringstid	2,3 ± 0,2 m
Spinn	3/2
nuclear quadrupole moment
upptäcktsdatum	1989
Paritet	-

²²¹At Decay Modes

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

²²²At

natural abundance	Radioactive ☢️
relative atomic mass	222,022494 ± 0,000017 Da
masstal	222
g-factor
Halveringstid	54 ± 10 s
Spinn
nuclear quadrupole moment
upptäcktsdatum	1989
Paritet

²²²At Decay Modes

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

²²³At

natural abundance	Radioactive ☢️
relative atomic mass	223,025151 ± 0,000015 Da
masstal	223
g-factor
Halveringstid	50 ± 7 s
Spinn	3/2
nuclear quadrupole moment
upptäcktsdatum	1989
Paritet	-

²²³At Decay Modes

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

²²⁴At

natural abundance	Radioactive ☢️
relative atomic mass	224,029749 ± 0,000024 Da
masstal	224
g-factor
Halveringstid	2,5 ± 1,5 m
Spinn	2
nuclear quadrupole moment
upptäcktsdatum	2010
Paritet	+

²²⁴At Decay Modes

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

²²⁵At

natural abundance	Radioactive ☢️
relative atomic mass	225,032528 ± 0,000322 Da
masstal	225
g-factor
Halveringstid
Spinn	1/2
nuclear quadrupole moment	0
upptäcktsdatum	2010
Paritet	+

²²⁵At Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%

²²⁶At

natural abundance	Radioactive ☢️
relative atomic mass	226,037209 ± 0,000322 Da
masstal	226
g-factor
Halveringstid
Spinn	2
nuclear quadrupole moment
upptäcktsdatum	2010
Paritet	+

²²⁶At Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%

²²⁷At

natural abundance	Radioactive ☢️
relative atomic mass	227,040183 ± 0,000322 Da
masstal	227
g-factor
Halveringstid
Spinn	1/2
nuclear quadrupole moment	0
upptäcktsdatum	2010
Paritet	+

²²⁷At Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%

²²⁸At

natural abundance	Radioactive ☢️
relative atomic mass	228,04496 ± 0,000429 Da
masstal	228
g-factor
Halveringstid
Spinn	3
nuclear quadrupole moment
upptäcktsdatum	2010
Paritet	+

²²⁸At Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%

²²⁹At

natural abundance	Radioactive ☢️
relative atomic mass	229,048191 ± 0,000429 Da
masstal	229
g-factor
Halveringstid
Spinn	1/2
nuclear quadrupole moment	0
upptäcktsdatum	2010
Paritet	+

²²⁹At Decay Modes

decay mode	Intensitet
β⁻ (β⁻ decay)	%
β⁻ n (β⁻-delayed neutron emission)	%

historia

upptäckare eller uppfinnare	D.R.Corson, K.R.MacKenzie, E.Segré
fyndplats	United States
upptäcktsdatum	1940
etymologi	Greek: astatos (unstable).
uttal	AS-teh-teen (engelska)

Sources

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

ALLFO-ID	28791
Australian Educational Vocabulary-ID	scot/1850
Brockhaus Enzyklopädie-ID	astat
CAS-nummer	7440-68-8
ChEBI-ID	30415
DSSTOX compound identifier	DTXCID40147882
DSSTox substance ID	DTXSID40225391
Den Store Danske-ID	astat
Enciclopedia Treccani	astato
Encyclopædia Universalis-ID	astate
FAST-ID	819270
Freebase-ID	/m/027t9kn
Gran Enciclopèdia Catalana-ID	0005881
InChI	InChI=1S/At
InChIKey	RYXHOMYVWAEKHL-UHFFFAOYSA-N
J9U-ID	987007294954905171
KBpedia-ID	Astatine
MeSH-ID	D001246
Namuwiki-ID	아스타틴
OmegaWiki Definierad Betydelse	155974
OpenAlex-ID	C531082785
PSH-ID	5815
PubChem-ID (CID)	5460479
Stora ryska encyklopedin-ID	1835401
Store norske leksikon-ID	astat
Zhongguo da baike quanshu-ID	191040
id-nummer i Deutsche Nationalbibliotheks katalog	4143236-8
id-nummer i USA:s kongressbiblioteks katalog	sh85008844
synset-ID på WordNet 3.1	14653739-n
ämnes-ID på Quora	Astatine
ämnes-ID på Semantic Scholar	992086

Astat (At)

Egenskaper

Astatisotoper

191At

191At Decay Modes

192At

192At Decay Modes

193At

193At Decay Modes

194At

194At Decay Modes

195At

195At Decay Modes

196At

196At Decay Modes

197At

197At Decay Modes

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