Astats

Astats (At)

chemical element with symbol At and atomic number 85
Atomic Number85
Atomic Weight210
Masas skaitlis191
Group17
Period6
Blockp
protons85 p+
neitrons106 n0
elektrons85 e-
Animated Bora atoma struktūras modelis of At (Astats)

Fizikāla Īpašība

Atoma Rādiuss
molar volume
Covalent Radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
blīvums

Chemical Property

enerģija
proton affinity
Elektrontieksme
jonizācijas potenciāls
jonizācijas potenciāls of At (Astats)
enthalpy of vaporization
enthalpy of fusion
standard enthalpy of formation
elektrons
electron shell2, 8, 18, 32, 18, 7
Bora atoma struktūras modelis: At (Astats)
vērtības elektrons7
Lewis structure: At (Astats)
elektronu konfigurācija[Xe] 4f14 5d10 6s2 6p5
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 4f14 5d10 6s2 6p5
Enhanced Bora atoma struktūras modelis of At (Astats)
Orbital Diagram of At (Astats)
Oksidēšanas pakāpe-1, 1, 3, 5, 7
elektronegativitāte
2.2
Electrophilicity Index
fundamentālais agregātstāvoklis
agregātstāvoklisSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
trīskāršais punkts
appearance
krāsa
Silver
appearanceunknown, probably metallic
Laušanas koeficients
thermodynamic material property
Thermal Conductivity
Termiskā izplešanās
Molārā siltumietilpība
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
īpatnējā pretestība
Supravadītspēja
Magnētisms
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Curie temperature
Néel temperature
struktūra
Crystal Structure ()
lattice constant
Lattice Angles
mechanical property
Cietība
tilpuma elastības modulis
shear modulus
Junga modulis
Poisson's ratio
skaņas ātrums
klasifikācija
CategoryHalogens, 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
Neutron cross section
Neutron Mass Absorption
quantum number2P3/2
space group ()

Isotopes of Astatine

Stable Isotopes0
Unstable Isotopes39
Natural Isotopes0

191At

Masas skaitlis191
neutron number106
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
2,1 ± 0,8 ms
spins1/2
nuclear quadrupole moment
0
atklāšanas datums2003
parity+

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

192At

Masas skaitlis192
neutron number107
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
11,5 ± 0,6 ms
spins3
nuclear quadrupole moment
atklāšanas datums2006
parity+

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

193At

Masas skaitlis193
neutron number108
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
29 ± 5 ms
spins1/2
nuclear quadrupole moment
0
atklāšanas datums2003
parity+

decay modeintensity
α (α emission)100%

194At

Masas skaitlis194
neutron number109
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
286 ± 7 ms
spins5
nuclear quadrupole moment
atklāšanas datums2009
parity-

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

195At

Masas skaitlis195
neutron number110
Relative Atomic Mass
g-factor
3,2 ± 0,1
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
290 ± 20 ms
spins1/2
nuclear quadrupole moment
0
atklāšanas datums1999
parity+

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

196At

Masas skaitlis196
neutron number111
Relative Atomic Mass
g-factor
1,24 ± 0,046666666666667
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
377 ± 4 ms
spins3
nuclear quadrupole moment
-0,6 ± 0,4
atklāšanas datums1967
parity+

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

197At

Masas skaitlis197
neutron number112
Relative Atomic Mass
g-factor
0,85111111111111 ± 0,015555555555556
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
388,2 ± 5,6 ms
spins9/2
nuclear quadrupole moment
-1,2 ± 0,6
atklāšanas datums1967
parity-

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

198At

Masas skaitlis198
neutron number113
Relative Atomic Mass
g-factor
1,34 ± 0,046666666666667
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
4,47 ± 0,05 s
spins3
nuclear quadrupole moment
-0,6 ± 0,3
atklāšanas datums1967
parity+

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

199At

Masas skaitlis199
neutron number114
Relative Atomic Mass
g-factor
0,87555555555556 ± 0,015555555555556
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
7,02 ± 0,12 s
spins9/2
nuclear quadrupole moment
-1 ± 0,5
atklāšanas datums1967
parity-

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

200At

Masas skaitlis200
neutron number115
Relative Atomic Mass
g-factor
1,4266666666667 ± 0,05
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
43,2 ± 0,9 s
spins3
nuclear quadrupole moment
-0,5 ± 0,5
atklāšanas datums1963
parity+

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

201At

Masas skaitlis201
neutron number116
Relative Atomic Mass
g-factor
0,89111111111111 ± 0,015555555555556
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
85,2 ± 1,6 s
spins9/2
nuclear quadrupole moment
-1 ± 0,5
atklāšanas datums1963
parity-

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

202At

Masas skaitlis202
neutron number117
Relative Atomic Mass
g-factor
1,38 ± 0,053333333333333
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
184 ± 1 s
spins3
nuclear quadrupole moment
-0,5 ± 0,3
atklāšanas datums1961
parity+

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

203At

Masas skaitlis203
neutron number118
Relative Atomic Mass
g-factor
0,88888888888889 ± 0,015555555555556
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
7,4 ± 0,2 m
spins9/2
nuclear quadrupole moment
-0,7 ± 0,4
atklāšanas datums1951
parity-

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

204At

Masas skaitlis204
neutron number119
Relative Atomic Mass
g-factor
0,68857142857143 ± 0,025714285714286
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
9,12 ± 0,11 m
spins7
nuclear quadrupole moment
-0,6 ± 0,3
atklāšanas datums1961
parity+

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

205At

Masas skaitlis205
neutron number120
Relative Atomic Mass
g-factor
0,90888888888889 ± 0,015555555555556
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
26,9 ± 0,8 m
spins9/2
nuclear quadrupole moment
-0,6 ± 0,3
atklāšanas datums1951
parity-

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

206At

Masas skaitlis206
neutron number121
Relative Atomic Mass
g-factor
0,72833333333333 ± 0,028333333333333
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
30,6 ± 0,8 m
spins6
nuclear quadrupole moment
-0,4 ± 0,2
atklāšanas datums1961
parity

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

207At

Masas skaitlis207
neutron number122
Relative Atomic Mass
g-factor
0,91777777777778 ± 0,015555555555556
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
1,81 ± 0,03 h
spins9/2
nuclear quadrupole moment
-0,5 ± 0,3
atklāšanas datums1951
parity-

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

208At

Masas skaitlis208
neutron number123
Relative Atomic Mass
g-factor
0,74333333333333 ± 0,03
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
1,63 ± 0,03 h
spins6
nuclear quadrupole moment
-0,4 ± 0,3
atklāšanas datums1950
parity+

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

209At

Masas skaitlis209
neutron number124
Relative Atomic Mass
g-factor
0,91555555555556 ± 0,015555555555556
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
5,42 ± 0,05 h
spins9/2
nuclear quadrupole moment
-0,4 ± 0,2
atklāšanas datums1951
parity-

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

210At

Masas skaitlis210
neutron number125
Relative Atomic Mass
g-factor
0,944 ± 0,032
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
8,1 ± 0,4 h
spins5
nuclear quadrupole moment
-0,4 ± 0,2
atklāšanas datums1949
parity

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

211At

Masas skaitlis211
neutron number126
Relative Atomic Mass
g-factor
0,92 ± 0,0088888888888889
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
7,214 ± 0,007 h
spins9/2
nuclear quadrupole moment
atklāšanas datums1940
parity-

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

212At

Masas skaitlis212
neutron number127
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
314 ± 3 ms
spins1
nuclear quadrupole moment
atklāšanas datums1954
parity-

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

213At

Masas skaitlis213
neutron number128
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
125 ± 6 ns
spins9/2
nuclear quadrupole moment
atklāšanas datums1968
parity-

decay modeintensity
α (α emission)100%

214At

Masas skaitlis214
neutron number129
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
558 ± 10 ns
spins1
nuclear quadrupole moment
atklāšanas datums1949
parity-

decay modeintensity
α (α emission)100%

215At

Masas skaitlis215
neutron number130
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
37 ± 3 us
spins9/2
nuclear quadrupole moment
atklāšanas datums1944
parity-

decay modeintensity
α (α emission)100%

216At

Masas skaitlis216
neutron number131
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
300 ± 30 us
spins1
nuclear quadrupole moment
atklāšanas datums1948
parity-

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

217At

Masas skaitlis217
neutron number132
Relative Atomic Mass
g-factor
0,84444444444444 ± 0,044444444444444
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
32,6 ± 0,3 ms
spins9/2
nuclear quadrupole moment
atklāšanas datums1947
parity-

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

218At

Masas skaitlis218
neutron number133
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
1,28 ± 0,06 s
spins2
nuclear quadrupole moment
atklāšanas datums1943
parity-

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

219At

Masas skaitlis219
neutron number134
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
56 ± 3 s
spins9/2
nuclear quadrupole moment
atklāšanas datums1953
parity-

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

220At

Masas skaitlis220
neutron number135
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
3,71 ± 0,04 m
spins3
nuclear quadrupole moment
atklāšanas datums1989
parity-

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

221At

Masas skaitlis221
neutron number136
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
2,3 ± 0,2 m
spins3/2
nuclear quadrupole moment
atklāšanas datums1989
parity-

decay modeintensity
β (β decay)100%

222At

Masas skaitlis222
neutron number137
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
54 ± 10 s
spins
nuclear quadrupole moment
atklāšanas datums1989
parity

decay modeintensity
β (β decay)100%

223At

Masas skaitlis223
neutron number138
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
50 ± 7 s
spins3/2
nuclear quadrupole moment
atklāšanas datums1989
parity-

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

224At

Masas skaitlis224
neutron number139
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
2,5 ± 1,5 m
spins2
nuclear quadrupole moment
atklāšanas datums2010
parity+

decay modeintensity
β (β decay)100%

225At

Masas skaitlis225
neutron number140
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins1/2
nuclear quadrupole moment
0
atklāšanas datums2010
parity+

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

226At

Masas skaitlis226
neutron number141
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins2
nuclear quadrupole moment
atklāšanas datums2010
parity+

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

227At

Masas skaitlis227
neutron number142
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins1/2
nuclear quadrupole moment
0
atklāšanas datums2010
parity+

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

228At

Masas skaitlis228
neutron number143
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins3
nuclear quadrupole moment
atklāšanas datums2010
parity+

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

229At

Masas skaitlis229
neutron number144
Relative Atomic Mass
g-factor
natural abundance
radioaktivitāte☢️ radioactive element
Pussabrukšanas periods
spins1/2
nuclear quadrupole moment
0
atklāšanas datums2010
parity+

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

vēsture

atklājējs vai izgudrotājsD.R.Corson, K.R.MacKenzie, E.Segré
atraduma atrašanās vietaUnited States
atklāšanas datums1940
EtimoloģijaGreek: astatos (unstable).
izrunaAS-teh-teen (angļu)

avots

Abundance
Abundance in Earth's crust
natural abundance (okeāns)
natural abundance (cilvēka ķermenis)
0 %
natural abundance (meteoroīds)
0 %
natural abundance (Saule)
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