Aktinium

Aktinium (Ac)

chemical element with the atomic number of 89
Atomic Number89
Atomic Weight227
Nombor jisim205
Group3
Period7
Blockd
proton89 p+
neutron116 n0
Elektron89 e-
Animated Model Bohr of Ac (Aktinium)

Sifat Fizikal

Jejari Atom
195 pm
molar volume
22.54 cm³/mol
Jejari kovalen
186 pm
Metallic Radius
ionic radius
112 pm
Crystal Radius
126 pm
Jejari van der Waals
247 pm
ketumpatan
Atomic Radii Of The Elements: Aktinium0255075100125150175200225250pmJejari AtomJejari KovalenMetallic RadiusJejari van der Waals

Sifat Kimia

tenaga
proton affinity
Pertalian elektron
ionization energy
5.380226 eV/particle
ionization energy of Ac (Aktinium)
Entalpi pengewapan
292.9 kJ/mol
entalpi pelakuran
10.5 kJ/mol
standard enthalpy of formation
406 kJ/mol
Elektron
Petala elektron2, 8, 18, 32, 18, 9, 2
Model Bohr: Ac (Aktinium)
Elektron valens2
Teori ion Lewis: Ac (Aktinium)
tatarajah elektron[Rn] 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 6d1 7s2
Enhanced Model Bohr of Ac (Aktinium)
Orbital Diagram of Ac (Aktinium)
Keadaan pengoksidaan2, 3
Keelektronegatifan
1.1
Electrophilicity Index
0.8159546412794374 eV/particle
keadaan jirim asas
fasa jirimSolid
gaseous state of matter
Boiling Point
3,473.15 K
Melting Point
1,323.15 K
critical pressure
critical temperature
triple point
rupa
warna
Silver
rupa
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
Kekonduksian elektrik
Kerintangan dan kekonduksian elektrik
Kesuperkonduksian
kemagnetan
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal StructureFace Centered Cubic (FCC)
lattice constant
5.31 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
Modulus pukal
shear modulus
Young's modulus
Nisbah Poisson
Kelajuan bunyi
pengelasan
CategoryActinides, Actinides
CAS GroupIIIA
IUPAC GroupIIIB
Glawe Number33
Mendeleev Number14
Pettifor Number48
Geochemical ClassU/Th decay series
Goldschmidt classificationsynthetic

other

Gas Basicity
polarizability
203 ± 12 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
880
Neutron Mass Absorption
0.078
Nombor kuantum2D3/2
space group225 (Fm_3m)

Isotopes of Actinium

Stable Isotopes0
Unstable Isotopes33
Natural Isotopes0

205Ac

Nombor jisim205
nombor neutron116
jisim atom relatif
205.015144152 ± 0.000063682 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
80 ± 60 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan2014
parity-

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

206Ac

Nombor jisim206
nombor neutron117
jisim atom relatif
206.014476477 ± 0.000069874 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
25 ± 7 ms
Spin3
nuclear quadrupole moment
tarikh penemuan1998
parity+

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

207Ac

Nombor jisim207
nombor neutron118
jisim atom relatif
207.011965967 ± 0.000060384 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
31 ± 8 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan1994
parity-

decay modeKeamatan (fizik)
α (α emission)100%

208Ac

Nombor jisim208
nombor neutron119
jisim atom relatif
208.011552251 ± 0.000069225 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
97 ± 15 ms
Spin3
nuclear quadrupole moment
tarikh penemuan1994
parity+

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

209Ac

Nombor jisim209
nombor neutron120
jisim atom relatif
209.009495375 ± 0.000059953 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
94 ± 10 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan1968
parity-

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

210Ac

Nombor jisim210
nombor neutron121
jisim atom relatif
210.009408625 ± 0.000066782 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
350 ± 40 ms
Spin7
nuclear quadrupole moment
tarikh penemuan1968
parity+

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

211Ac

Nombor jisim211
nombor neutron122
jisim atom relatif
211.007668846 ± 0.000057706 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
213 ± 25 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan1968
parity-

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

212Ac

Nombor jisim212
nombor neutron123
jisim atom relatif
212.007836442 ± 0.000023492 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
895 ± 28 ms
Spin7
nuclear quadrupole moment
tarikh penemuan1968
parity+

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

213Ac

Nombor jisim213
nombor neutron124
jisim atom relatif
213.006592665 ± 0.000012522 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
738 ± 16 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan1968
parity-

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

214Ac

Nombor jisim214
nombor neutron125
jisim atom relatif
214.0069064 ± 0.000014547 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
8.2 ± 0.2 s
Spin5
nuclear quadrupole moment
tarikh penemuan1968
parity+

decay modeKeamatan (fizik)
α (α emission)93%
β+ (β+ decay; β+ = ϵ + e+)7%

215Ac

Nombor jisim215
nombor neutron126
jisim atom relatif
215.006474061 ± 0.000013318 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
171 ± 10 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan1968
parity-

decay modeKeamatan (fizik)
α (α emission)100%
β+ (β+ decay; β+ = ϵ + e+)0.09%

216Ac

Nombor jisim216
nombor neutron127
jisim atom relatif
216.008749101 ± 0.000009908 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
440 ± 16 us
Spin1
nuclear quadrupole moment
tarikh penemuan1967
parity-

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

217Ac

Nombor jisim217
nombor neutron128
jisim atom relatif
217.009342325 ± 0.000012048 Da
g-factor
0.85111111111111 ± 0.011111111111111
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
69 ± 4 ns
Spin9/2
nuclear quadrupole moment
tarikh penemuan1972
parity-

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

218Ac

Nombor jisim218
nombor neutron129
jisim atom relatif
218.01164886 ± 0.000061853 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1 ± 0.04 us
Spin1
nuclear quadrupole moment
tarikh penemuan1970
parity-

decay modeKeamatan (fizik)
α (α emission)100%

219Ac

Nombor jisim219
nombor neutron130
jisim atom relatif
219.012420425 ± 0.000055263 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
9.4 ± 1 us
Spin9/2
nuclear quadrupole moment
tarikh penemuan1970
parity-

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

220Ac

Nombor jisim220
nombor neutron131
jisim atom relatif
220.014754527 ± 0.000006579 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
26.36 ± 0.19 ms
Spin3
nuclear quadrupole moment
tarikh penemuan1970
parity-

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

221Ac

Nombor jisim221
nombor neutron132
jisim atom relatif
221.015599721 ± 0.000061086 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
52 ± 2 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan1968
parity-

decay modeKeamatan (fizik)
α (α emission)100%

222Ac

Nombor jisim222
nombor neutron133
jisim atom relatif
222.017844232 ± 0.000005044 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5 ± 0.5 s
Spin1
nuclear quadrupole moment
tarikh penemuan1949
parity-

decay modeKeamatan (fizik)
α (α emission)99%
β+ (β+ decay; β+ = ϵ + e+)1%

223Ac

Nombor jisim223
nombor neutron134
jisim atom relatif
223.019135982 ± 0.000007457 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.1 ± 0.05 m
Spin5/2
nuclear quadrupole moment
tarikh penemuan1948
parity-

decay modeKeamatan (fizik)
α (α emission)99%
ϵ (electron capture)

224Ac

Nombor jisim224
nombor neutron135
jisim atom relatif
224.021722249 ± 0.000004389 Da
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.78 ± 0.16 h
Spin0
nuclear quadrupole moment
0
tarikh penemuan1948
parity-

decay modeKeamatan (fizik)
β+ (β+ decay; β+ = ϵ + e+)90.5%
α (α emission)9.5%
β (β decay)

225Ac

Nombor jisim225
nombor neutron136
jisim atom relatif
225.023228601 ± 0.000005107 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
9.919 ± 0.0021 d
Spin3/2
nuclear quadrupole moment
tarikh penemuan1947
parity-

decay modeKeamatan (fizik)
α (α emission)100%
14C5.3%

226Ac

Nombor jisim226
nombor neutron137
jisim atom relatif
226.026096999 ± 0.000003327 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
29.37 ± 0.12 h
Spin1
nuclear quadrupole moment
tarikh penemuan1950
parity-

decay modeKeamatan (fizik)
β (β decay)83%
ϵ (electron capture)17%
α (α emission)0.006%

227Ac

Nombor jisim227
nombor neutron138
jisim atom relatif
227.027750594 ± 0.000002068 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
21.772 ± 0.003 y
Spin3/2
nuclear quadrupole moment
tarikh penemuan1851
parity-

decay modeKeamatan (fizik)
β (β decay)98.62%
α (α emission)1.38%

228Ac

Nombor jisim228
nombor neutron139
jisim atom relatif
228.031019685 ± 0.000002247 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
6.15 ± 0.02 h
Spin3
nuclear quadrupole moment
tarikh penemuan1908
parity+

decay modeKeamatan (fizik)
β (β decay)100%

229Ac

Nombor jisim229
nombor neutron140
jisim atom relatif
229.032947 ± 0.000013 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
62.7 ± 0.5 m
Spin3/2
nuclear quadrupole moment
tarikh penemuan1952
parity+

decay modeKeamatan (fizik)
β (β decay)100%

230Ac

Nombor jisim230
nombor neutron141
jisim atom relatif
230.036327 ± 0.000017 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
122 ± 3 s
Spin1
nuclear quadrupole moment
tarikh penemuan1973
parity+

decay modeKeamatan (fizik)
β (β decay)100%
β SF (β-delayed fission)1.2%

231Ac

Nombor jisim231
nombor neutron142
jisim atom relatif
231.038393 ± 0.000014 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
7.5 ± 0.1 m
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1973
parity+

decay modeKeamatan (fizik)
β (β decay)100%

232Ac

Nombor jisim232
nombor neutron143
jisim atom relatif
232.042034 ± 0.000014 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.98 ± 0.08 m
Spin1
nuclear quadrupole moment
tarikh penemuan1986
parity+

decay modeKeamatan (fizik)
β (β decay)100%

233Ac

Nombor jisim233
nombor neutron144
jisim atom relatif
233.044346 ± 0.000014 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
143 ± 10 s
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1983
parity+

decay modeKeamatan (fizik)
β (β decay)100%

234Ac

Nombor jisim234
nombor neutron145
jisim atom relatif
234.048139 ± 0.000015 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
45 ± 2 s
Spin1
nuclear quadrupole moment
tarikh penemuan1986
parity+

decay modeKeamatan (fizik)
β (β decay)100%

235Ac

Nombor jisim235
nombor neutron146
jisim atom relatif
235.05084 ± 0.000015 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
62 ± 4 s
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan2006
parity+

decay modeKeamatan (fizik)
β (β decay)100%

236Ac

Nombor jisim236
nombor neutron147
jisim atom relatif
236.054988 ± 0.000041 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.5 ± 3.6 m
Spin3
nuclear quadrupole moment
tarikh penemuan2010
parity+

decay modeKeamatan (fizik)
β (β decay)100%

237Ac

Nombor jisim237
nombor neutron148
jisim atom relatif
237.057993 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan
parity+

decay modeKeamatan (fizik)
β (β decay)
Actinium sample (31481701837)
Electron shell 089 Actinium

sejarah

penemu atau perekaAndré Debierne
tempat penemuanFrance
tarikh penemuan1899
EtimologiGreek: akis, aktinos (ray).
sebutanak-TIN-i-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust
0.00000000055 mg/kg
natural abundance (lautan)
natural abundance (Tubuh manusia)
0 %
natural abundance (Meteoroid)
natural abundance (Matahari)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants