Astat

Astat (At)

chemical element with symbol At and atomic number 85
Atomski broj85
Relativna atomska masa210
Maseni broj191
Skupina17
Perioda6
Blokp
proton85 p+
neutron106 n0
elektron85 e-
Animated Bohrov model atoma of At (Astat)

Physical Property

Atomski Radijus
Molni volumen
Kovalentni Radijus
Metallic Radius
Ionski radijus
Crystal Radius
Van der Waals radius
gustoća

Kemijsko Svojstvo

energija
proton affinity
Elektronski afinitet
ionization energy
ionization energy of At (Astat)
Toplina isparivanja
toplina taljenja
standard enthalpy of formation
elektron
Elektronska ljuska2, 8, 18, 32, 18, 7
Bohrov model atoma: At (Astat)
valence electron7
Lewis structure: At (Astat)
electron configuration[Xe] 4f14 5d10 6s2 6p5
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p5
Enhanced Bohrov model atoma of At (Astat)
Orbital Diagram of At (Astat)
Oksidacijski broj-1, 1, 3, 5, 7
Elektronegativnost
2.2
Electrophilicity Index
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
Talište
critical pressure
critical temperature
Trojna točka
appearance
boja
Srebrna
appearanceunknown, 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
KategorijaHalogeni elementi, Halogens
CAS GroupVIIB
IUPAC GroupVIIA
Glawe Number98
Mendeleev Number110
Pettifor Number96
Geochemical ClassU/Th decay series
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Nuklearni udarni presjek
Neutron Mass Absorption
Kvantni brojevi2P3/2
space group ()

Isotopes of Astatine

Stabilni izotopi0
Nestabilni izotopi39
Natural Isotopes0

191At

Maseni broj191
neutron number106
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,1 ± 0,8 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2003
Parnost+

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

192At

Maseni broj192
neutron number107
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,5 ± 0,6 ms
spin3
nuclear quadrupole moment
vrijeme otkrića ili izuma2006
Parnost+

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

193At

Maseni broj193
neutron number108
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29 ± 5 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2003
Parnost+

decay modeintensity
α (α emission)100%

194At

Maseni broj194
neutron number109
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
286 ± 7 ms
spin5
nuclear quadrupole moment
vrijeme otkrića ili izuma2009
Parnost-

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

195At

Maseni broj195
neutron number110
Relativna Atomska Masa
g-factor
3,2 ± 0,1
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
290 ± 20 ms
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1999
Parnost+

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

196At

Maseni broj196
neutron number111
Relativna Atomska Masa
g-factor
1,24 ± 0,046666666666667
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
377 ± 4 ms
spin3
nuclear quadrupole moment
−0,6 ± 0,4
vrijeme otkrića ili izuma1967
Parnost+

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

197At

Maseni broj197
neutron number112
Relativna Atomska Masa
g-factor
0,85111111111111 ± 0,015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
388,2 ± 5,6 ms
spin9/2
nuclear quadrupole moment
−1,2 ± 0,6
vrijeme otkrića ili izuma1967
Parnost-

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

198At

Maseni broj198
neutron number113
Relativna Atomska Masa
g-factor
1,34 ± 0,046666666666667
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,47 ± 0,05 s
spin3
nuclear quadrupole moment
−0,6 ± 0,3
vrijeme otkrića ili izuma1967
Parnost+

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

199At

Maseni broj199
neutron number114
Relativna Atomska Masa
g-factor
0,87555555555556 ± 0,015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,02 ± 0,12 s
spin9/2
nuclear quadrupole moment
−1 ± 0,5
vrijeme otkrića ili izuma1967
Parnost-

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

200At

Maseni broj200
neutron number115
Relativna Atomska Masa
g-factor
1,4266666666667 ± 0,05
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
43,2 ± 0,9 s
spin3
nuclear quadrupole moment
−0,5 ± 0,5
vrijeme otkrića ili izuma1963
Parnost+

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

201At

Maseni broj201
neutron number116
Relativna Atomska Masa
g-factor
0,89111111111111 ± 0,015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
85,2 ± 1,6 s
spin9/2
nuclear quadrupole moment
−1 ± 0,5
vrijeme otkrića ili izuma1963
Parnost-

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

202At

Maseni broj202
neutron number117
Relativna Atomska Masa
g-factor
1,38 ± 0,053333333333333
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
184 ± 1 s
spin3
nuclear quadrupole moment
−0,5 ± 0,3
vrijeme otkrića ili izuma1961
Parnost+

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

203At

Maseni broj203
neutron number118
Relativna Atomska Masa
g-factor
0,88888888888889 ± 0,015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,4 ± 0,2 m
spin9/2
nuclear quadrupole moment
−0,7 ± 0,4
vrijeme otkrića ili izuma1951
Parnost-

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

204At

Maseni broj204
neutron number119
Relativna Atomska Masa
g-factor
0,68857142857143 ± 0,025714285714286
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,12 ± 0,11 m
spin7
nuclear quadrupole moment
−0,6 ± 0,3
vrijeme otkrića ili izuma1961
Parnost+

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

205At

Maseni broj205
neutron number120
Relativna Atomska Masa
g-factor
0,90888888888889 ± 0,015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
26,9 ± 0,8 m
spin9/2
nuclear quadrupole moment
−0,6 ± 0,3
vrijeme otkrića ili izuma1951
Parnost-

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

206At

Maseni broj206
neutron number121
Relativna Atomska Masa
g-factor
0,72833333333333 ± 0,028333333333333
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
30,6 ± 0,8 m
spin6
nuclear quadrupole moment
−0,4 ± 0,2
vrijeme otkrića ili izuma1961
Parnost

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

207At

Maseni broj207
neutron number122
Relativna Atomska Masa
g-factor
0,91777777777778 ± 0,015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,81 ± 0,03 h
spin9/2
nuclear quadrupole moment
−0,5 ± 0,3
vrijeme otkrića ili izuma1951
Parnost-

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

208At

Maseni broj208
neutron number123
Relativna Atomska Masa
g-factor
0,74333333333333 ± 0,03
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,63 ± 0,03 h
spin6
nuclear quadrupole moment
−0,4 ± 0,3
vrijeme otkrića ili izuma1950
Parnost+

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

209At

Maseni broj209
neutron number124
Relativna Atomska Masa
g-factor
0,91555555555556 ± 0,015555555555556
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,42 ± 0,05 h
spin9/2
nuclear quadrupole moment
−0,4 ± 0,2
vrijeme otkrića ili izuma1951
Parnost-

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

210At

Maseni broj210
neutron number125
Relativna Atomska Masa
g-factor
0,944 ± 0,032
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,1 ± 0,4 h
spin5
nuclear quadrupole moment
−0,4 ± 0,2
vrijeme otkrića ili izuma1949
Parnost

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

211At

Maseni broj211
neutron number126
Relativna Atomska Masa
g-factor
0,92 ± 0,0088888888888889
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,214 ± 0,007 h
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1940
Parnost-

decay modeintensity
ϵ (electron capture)58.2%
α (α emission)41.8%

212At

Maseni broj212
neutron number127
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
314 ± 3 ms
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma1954
Parnost-

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

213At

Maseni broj213
neutron number128
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
125 ± 6 ns
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1968
Parnost-

decay modeintensity
α (α emission)100%

214At

Maseni broj214
neutron number129
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
558 ± 10 ns
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma1949
Parnost-

decay modeintensity
α (α emission)100%

215At

Maseni broj215
neutron number130
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
37 ± 3 us
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1944
Parnost-

decay modeintensity
α (α emission)100%

216At

Maseni broj216
neutron number131
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
300 ± 30 us
spin1
nuclear quadrupole moment
vrijeme otkrića ili izuma1948
Parnost-

decay modeintensity
α (α emission)100%
β (β decay)
ϵ (electron capture)

217At

Maseni broj217
neutron number132
Relativna Atomska Masa
g-factor
0,84444444444444 ± 0,044444444444444
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
32,6 ± 0,3 ms
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1947
Parnost-

decay modeintensity
α (α emission)99.992%
β (β decay)0.008%

218At

Maseni broj218
neutron number133
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,28 ± 0,06 s
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma1943
Parnost-

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

219At

Maseni broj219
neutron number134
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
56 ± 3 s
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1953
Parnost-

decay modeintensity
α (α emission)93.6%
β (β decay)6.4%

220At

Maseni broj220
neutron number135
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,71 ± 0,04 m
spin3
nuclear quadrupole moment
vrijeme otkrića ili izuma1989
Parnost-

decay modeintensity
β (β decay)92%
α (α emission)8%

221At

Maseni broj221
neutron number136
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,3 ± 0,2 m
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1989
Parnost-

decay modeintensity
β (β decay)100%

222At

Maseni broj222
neutron number137
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
54 ± 10 s
spin
nuclear quadrupole moment
vrijeme otkrića ili izuma1989
Parnost

decay modeintensity
β (β decay)100%

223At

Maseni broj223
neutron number138
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50 ± 7 s
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1989
Parnost-

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

224At

Maseni broj224
neutron number139
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,5 ± 1,5 m
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma2010
Parnost+

decay modeintensity
β (β decay)100%

225At

Maseni broj225
neutron number140
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2010
Parnost+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

226At

Maseni broj226
neutron number141
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin2
nuclear quadrupole moment
vrijeme otkrića ili izuma2010
Parnost+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

227At

Maseni broj227
neutron number142
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2010
Parnost+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

228At

Maseni broj228
neutron number143
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3
nuclear quadrupole moment
vrijeme otkrića ili izuma2010
Parnost+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)

229At

Maseni broj229
neutron number144
Relativna Atomska Masa
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2010
Parnost+

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Electron shell 085 Astatine

povijest

otkrio/izumioD.R.Corson, K.R.MacKenzie, E.Segré
location of discoveryUnited States
vrijeme otkrića ili izuma1940
EtimologijaGreek: astatos (unstable).
pronunciationAS-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

1s1.6446
2p4.5524
2s22.3324
3d13.4155
3p23.5024
3s24.6481
4d37.9504
4f37.7596
4p36.516
4s35.6644
5d58.661
5p53.96
5s52.0665
6p69.8368
6s67.7002