Astat

Astat (At)

hemijski element sa simbolom At i atomskim brojem 85
Atomic Number85
Atomic Weight210
Maseni broj191
Group17
Period6
Blockp
Proton85 p+
Neutron106 n0
Elektron85 e-
Animated Bohrov model atoma of At (Astat)

Physical Property

Atomski Radijus
Molarni volumen
covalent radius
147 pm
Metallic Radius
Ionski radijus
62 pm
Crystal Radius
76 pm
Van der Waalsov radijus
202 pm
gustoća

Chemical Property

energija
proton affinity
electron affinity
ionization energy
9,31751 eV/particle
ionization energy of At (Astat)
Toplota isparavanja
toplota topljenja
standard enthalpy of formation
Elektron
electron shell2, 8, 18, 32, 18, 7
Bohrov model atoma: At (Astat)
Valentni elektron7
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)
oksidacijsko stanje-1, 1, 3, 5, 7
Elektronegativnost
2.2
Electrophilicity Index
2,8161454412824063 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
Melting Point
575,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearanceunknown, probably metallic
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
CategoryHalogens, Halogens
CAS GroupVIIB
IUPAC GroupVIIA
Glawe Number98
Mendeleev Number110
Pettifor Number96
Geochemical ClassU/Th decay series
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
42 ± 4 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
Neutron Mass Absorption
Kvantni brojevi2P3/2
space group ()

Isotopes of Astatine

Stable Isotopes0
Unstable Isotopes39
Natural Isotopes0

191At

Maseni broj191
broj neutrona106
relative atomic mass
191,004148081 ± 0,000017287 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,1 ± 0,8 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića2003
parity+

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

192At

Maseni broj192
broj neutrona107
relative atomic mass
192,003140912 ± 0,000029922 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,5 ± 0,6 ms
spin3
nuclear quadrupole moment
datum otkrića2006
parity+

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

193At

Maseni broj193
broj neutrona108
relative atomic mass
192,999927725 ± 0,000023222 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29 ± 5 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića2003
parity+

decay modeintensity
α (α emission)100%

194At

Maseni broj194
broj neutrona109
relative atomic mass
193,999230816 ± 0,00002523 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
286 ± 7 ms
spin5
nuclear quadrupole moment
datum otkrića2009
parity-

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

195At

Maseni broj195
broj neutrona110
relative atomic mass
194,99627448 ± 0,000010276 Da
g-factor
3,2 ± 0,1
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
290 ± 20 ms
spin1/2
nuclear quadrupole moment
0
datum otkrića1999
parity+

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

196At

Maseni broj196
broj neutrona111
relative atomic mass
195,995799034 ± 0,000032458 Da
g-factor
1,24 ± 0,046666666666667
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
377 ± 4 ms
spin3
nuclear quadrupole moment
-0,6 ± 0,4
datum otkrića1967
parity+

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

197At

Maseni broj197
broj neutrona112
relative atomic mass
196,993177353 ± 0,00000857 Da
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
datum otkrića1967
parity-

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

198At

Maseni broj198
broj neutrona113
relative atomic mass
197,992797864 ± 0,000005265 Da
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
datum otkrića1967
parity+

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

199At

Maseni broj199
broj neutrona114
relative atomic mass
198,990527715 ± 0,00000578 Da
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
datum otkrića1967
parity-

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

200At

Maseni broj200
broj neutrona115
relative atomic mass
199,990351099 ± 0,000026264 Da
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
datum otkrića1963
parity+

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

201At

Maseni broj201
broj neutrona116
relative atomic mass
200,988417058 ± 0,000008786 Da
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
datum otkrića1963
parity-

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

202At

Maseni broj202
broj neutrona117
relative atomic mass
201,988625686 ± 0,000029631 Da
g-factor
1,38 ± 0,053333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
184 ± 1 s
spin3
nuclear quadrupole moment
-0,5 ± 0,3
datum otkrića1961
parity+

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

203At

Maseni broj203
broj neutrona118
relative atomic mass
202,986942904 ± 0,000011404 Da
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
datum otkrića1951
parity-

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

204At

Maseni broj204
broj neutrona119
relative atomic mass
203,987251393 ± 0,000024335 Da
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
datum otkrića1961
parity+

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

205At

Maseni broj205
broj neutrona120
relative atomic mass
204,986060546 ± 0,000012941 Da
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
datum otkrića1951
parity-

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

206At

Maseni broj206
broj neutrona121
relative atomic mass
205,986645768 ± 0,000014523 Da
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
datum otkrića1961
parity

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

207At

Maseni broj207
broj neutrona122
relative atomic mass
206,985799715 ± 0,000013318 Da
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
datum otkrića1951
parity-

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

208At

Maseni broj208
broj neutrona123
relative atomic mass
207,986613011 ± 0,000009577 Da
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
datum otkrića1950
parity+

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

209At

Maseni broj209
broj neutrona124
relative atomic mass
208,986168701 ± 0,000005094 Da
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
datum otkrića1951
parity-

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

210At

Maseni broj210
broj neutrona125
relative atomic mass
209,987147423 ± 0,000008261 Da
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
datum otkrića1949
parity

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

211At

Maseni broj211
broj neutrona126
relative atomic mass
210,987496226 ± 0,000002929 Da
g-factor
0,92 ± 0,0088888888888889
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,214 ± 0,007 h
spin9/2
nuclear quadrupole moment
datum otkrića1940
parity-

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

212At

Maseni broj212
broj neutrona127
relative atomic mass
211,990737301 ± 0,000002559 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
314 ± 3 ms
spin1
nuclear quadrupole moment
datum otkrića1954
parity-

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

213At

Maseni broj213
broj neutrona128
relative atomic mass
212,992936593 ± 0,000005258 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
125 ± 6 ns
spin9/2
nuclear quadrupole moment
datum otkrića1968
parity-

decay modeintensity
α (α emission)100%

214At

Maseni broj214
broj neutrona129
relative atomic mass
213,996372331 ± 0,000004274 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
558 ± 10 ns
spin1
nuclear quadrupole moment
datum otkrića1949
parity-

decay modeintensity
α (α emission)100%

215At

Maseni broj215
broj neutrona130
relative atomic mass
214,998651002 ± 0,000007116 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
37 ± 3 us
spin9/2
nuclear quadrupole moment
datum otkrića1944
parity-

decay modeintensity
α (α emission)100%

216At

Maseni broj216
broj neutrona131
relative atomic mass
216,002422643 ± 0,000003837 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
300 ± 30 us
spin1
nuclear quadrupole moment
datum otkrića1948
parity-

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

217At

Maseni broj217
broj neutrona132
relative atomic mass
217,004717794 ± 0,000005368 Da
g-factor
0,84444444444444 ± 0,044444444444444
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
32,6 ± 0,3 ms
spin9/2
nuclear quadrupole moment
datum otkrića1947
parity-

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

218At

Maseni broj218
broj neutrona133
relative atomic mass
218,008695941 ± 0,000012349 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,28 ± 0,06 s
spin2
nuclear quadrupole moment
datum otkrića1943
parity-

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

219At

Maseni broj219
broj neutrona134
relative atomic mass
219,011160587 ± 0,000003474 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
56 ± 3 s
spin9/2
nuclear quadrupole moment
datum otkrića1953
parity-

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

220At

Maseni broj220
broj neutrona135
relative atomic mass
220,015433 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,71 ± 0,04 m
spin3
nuclear quadrupole moment
datum otkrića1989
parity-

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

221At

Maseni broj221
broj neutrona136
relative atomic mass
221,018017 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,3 ± 0,2 m
spin3/2
nuclear quadrupole moment
datum otkrića1989
parity-

decay modeintensity
β (β decay)100%

222At

Maseni broj222
broj neutrona137
relative atomic mass
222,022494 ± 0,000017 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
54 ± 10 s
spin
nuclear quadrupole moment
datum otkrića1989
parity

decay modeintensity
β (β decay)100%

223At

Maseni broj223
broj neutrona138
relative atomic mass
223,025151 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
50 ± 7 s
spin3/2
nuclear quadrupole moment
datum otkrića1989
parity-

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

224At

Maseni broj224
broj neutrona139
relative atomic mass
224,029749 ± 0,000024 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,5 ± 1,5 m
spin2
nuclear quadrupole moment
datum otkrića2010
parity+

decay modeintensity
β (β decay)100%

225At

Maseni broj225
broj neutrona140
relative atomic mass
225,032528 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića2010
parity+

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

226At

Maseni broj226
broj neutrona141
relative atomic mass
226,037209 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin2
nuclear quadrupole moment
datum otkrića2010
parity+

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

227At

Maseni broj227
broj neutrona142
relative atomic mass
227,040183 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića2010
parity+

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

228At

Maseni broj228
broj neutrona143
relative atomic mass
228,04496 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin3
nuclear quadrupole moment
datum otkrića2010
parity+

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

229At

Maseni broj229
broj neutrona144
relative atomic mass
229,048191 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića2010
parity+

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

historija

otkrivač ili izumiteljD.R.Corson, K.R.MacKenzie, E.Segré
mjesto otkrićaUnited States
datum otkrića1940
EtimologijaGreek: astatos (unstable).
pronunciationAS-teh-teen (engleski)

izvor

Abundance
Abundance in Earth's crust
natural abundance (okean)
natural abundance (ljudsko tijelo)
0 %
natural abundance (Meteoroidi)
0 %
natural abundance (Sunce)
Abundance in Universe
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