Actinij[um]

Actinij[um] (Ac)

hemijski element s atomskim brojem 89
Atomic Number89
Atomic Weight227
Maseni broj205
Group3
Period7
Blockd
Proton89 p+
Neutron116 n0
Elektron89 e-
Animated Bohrov model atoma of Ac (Actinij[um])

Physical Property

Atomski Radijus
195 pm
Molarni volumen
22,54 cm³/mol
covalent radius
186 pm
Metallic Radius
Ionski radijus
112 pm
Crystal Radius
126 pm
Van der Waalsov radijus
247 pm
gustoća
Atomic Radii Of The Elements: Actinij[um]0102030405060708090100110120130140150160170180190200210220230240250pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
ionization energy
5,380226 eV/particle
ionization energy of Ac (Actinij[um])
Toplota isparavanja
292,9 kJ/mol
toplota topljenja
10,5 kJ/mol
standard enthalpy of formation
406 kJ/mol
Elektron
electron shell2, 8, 18, 32, 18, 9, 2
Bohrov model atoma: Ac (Actinij[um])
Valentni elektron2
Lewis structure: Ac (Actinij[um])
electron configuration[Rn] 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 6d1 7s2
Enhanced Bohrov model atoma of Ac (Actinij[um])
Orbital Diagram of Ac (Actinij[um])
oksidacijsko stanje2, 3
Elektronegativnost
1.1
Electrophilicity Index
0,8159546412794374 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
3.473,15 K
Melting Point
1.323,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearance
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 StructureFace Centered Cubic (FCC)
lattice constant
5,31 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Brzina zvuka
klasifikacija
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
Kvantni brojevi2D3/2
space group225 (Fm_3m)

Isotopes of Actinium

Stable Isotopes0
Unstable Isotopes33
Natural Isotopes0

205Ac

Maseni broj205
broj neutrona116
relative atomic mass
205,015144152 ± 0,000063682 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
80 ± 60 ms
spin9/2
nuclear quadrupole moment
datum otkrića2014
parity-

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

206Ac

Maseni broj206
broj neutrona117
relative atomic mass
206,014476477 ± 0,000069874 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
25 ± 7 ms
spin3
nuclear quadrupole moment
datum otkrića1998
parity+

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

207Ac

Maseni broj207
broj neutrona118
relative atomic mass
207,011965967 ± 0,000060384 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
31 ± 8 ms
spin9/2
nuclear quadrupole moment
datum otkrića1994
parity-

decay modeintensity
α (α emission)100%

208Ac

Maseni broj208
broj neutrona119
relative atomic mass
208,011552251 ± 0,000069225 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
97 ± 15 ms
spin3
nuclear quadrupole moment
datum otkrića1994
parity+

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

209Ac

Maseni broj209
broj neutrona120
relative atomic mass
209,009495375 ± 0,000059953 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
94 ± 10 ms
spin9/2
nuclear quadrupole moment
datum otkrića1968
parity-

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

210Ac

Maseni broj210
broj neutrona121
relative atomic mass
210,009408625 ± 0,000066782 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
350 ± 40 ms
spin7
nuclear quadrupole moment
datum otkrića1968
parity+

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

211Ac

Maseni broj211
broj neutrona122
relative atomic mass
211,007668846 ± 0,000057706 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
213 ± 25 ms
spin9/2
nuclear quadrupole moment
datum otkrića1968
parity-

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

212Ac

Maseni broj212
broj neutrona123
relative atomic mass
212,007836442 ± 0,000023492 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
895 ± 28 ms
spin7
nuclear quadrupole moment
datum otkrića1968
parity+

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

213Ac

Maseni broj213
broj neutrona124
relative atomic mass
213,006592665 ± 0,000012522 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
738 ± 16 ms
spin9/2
nuclear quadrupole moment
datum otkrića1968
parity-

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

214Ac

Maseni broj214
broj neutrona125
relative atomic mass
214,0069064 ± 0,000014547 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
8,2 ± 0,2 s
spin5
nuclear quadrupole moment
datum otkrića1968
parity+

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

215Ac

Maseni broj215
broj neutrona126
relative atomic mass
215,006474061 ± 0,000013318 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
171 ± 10 ms
spin9/2
nuclear quadrupole moment
datum otkrića1968
parity-

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

216Ac

Maseni broj216
broj neutrona127
relative atomic mass
216,008749101 ± 0,000009908 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
440 ± 16 us
spin1
nuclear quadrupole moment
datum otkrića1967
parity-

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

217Ac

Maseni broj217
broj neutrona128
relative atomic mass
217,009342325 ± 0,000012048 Da
g-factor
0,85111111111111 ± 0,011111111111111
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
69 ± 4 ns
spin9/2
nuclear quadrupole moment
datum otkrića1972
parity-

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

218Ac

Maseni broj218
broj neutrona129
relative atomic mass
218,01164886 ± 0,000061853 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1 ± 0,04 us
spin1
nuclear quadrupole moment
datum otkrića1970
parity-

decay modeintensity
α (α emission)100%

219Ac

Maseni broj219
broj neutrona130
relative atomic mass
219,012420425 ± 0,000055263 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,4 ± 1 us
spin9/2
nuclear quadrupole moment
datum otkrića1970
parity-

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

220Ac

Maseni broj220
broj neutrona131
relative atomic mass
220,014754527 ± 0,000006579 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
26,36 ± 0,19 ms
spin3
nuclear quadrupole moment
datum otkrića1970
parity-

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

221Ac

Maseni broj221
broj neutrona132
relative atomic mass
221,015599721 ± 0,000061086 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
52 ± 2 ms
spin9/2
nuclear quadrupole moment
datum otkrića1968
parity-

decay modeintensity
α (α emission)100%

222Ac

Maseni broj222
broj neutrona133
relative atomic mass
222,017844232 ± 0,000005044 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5 ± 0,5 s
spin1
nuclear quadrupole moment
datum otkrića1949
parity-

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

223Ac

Maseni broj223
broj neutrona134
relative atomic mass
223,019135982 ± 0,000007457 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,1 ± 0,05 m
spin5/2
nuclear quadrupole moment
datum otkrića1948
parity-

decay modeintensity
α (α emission)99%
ϵ (electron capture)

224Ac

Maseni broj224
broj neutrona135
relative atomic mass
224,021722249 ± 0,000004389 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,78 ± 0,16 h
spin0
nuclear quadrupole moment
0
datum otkrića1948
parity-

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

225Ac

Maseni broj225
broj neutrona136
relative atomic mass
225,023228601 ± 0,000005107 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9,919 ± 0,0021 d
spin3/2
nuclear quadrupole moment
datum otkrića1947
parity-

decay modeintensity
α (α emission)100%
14C5.3%

226Ac

Maseni broj226
broj neutrona137
relative atomic mass
226,026096999 ± 0,000003327 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29,37 ± 0,12 h
spin1
nuclear quadrupole moment
datum otkrića1950
parity-

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

227Ac

Maseni broj227
broj neutrona138
relative atomic mass
227,027750594 ± 0,000002068 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
21,772 ± 0,003 y
spin3/2
nuclear quadrupole moment
datum otkrića1851
parity-

decay modeintensity
β (β decay)98.62%
α (α emission)1.38%

228Ac

Maseni broj228
broj neutrona139
relative atomic mass
228,031019685 ± 0,000002247 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
6,15 ± 0,02 h
spin3
nuclear quadrupole moment
datum otkrića1908
parity+

decay modeintensity
β (β decay)100%

229Ac

Maseni broj229
broj neutrona140
relative atomic mass
229,032947 ± 0,000013 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
62,7 ± 0,5 m
spin3/2
nuclear quadrupole moment
datum otkrića1952
parity+

decay modeintensity
β (β decay)100%

230Ac

Maseni broj230
broj neutrona141
relative atomic mass
230,036327 ± 0,000017 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
122 ± 3 s
spin1
nuclear quadrupole moment
datum otkrića1973
parity+

decay modeintensity
β (β decay)100%
β SF (β-delayed fission)1.2%

231Ac

Maseni broj231
broj neutrona142
relative atomic mass
231,038393 ± 0,000014 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
7,5 ± 0,1 m
spin1/2
nuclear quadrupole moment
0
datum otkrića1973
parity+

decay modeintensity
β (β decay)100%

232Ac

Maseni broj232
broj neutrona143
relative atomic mass
232,042034 ± 0,000014 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,98 ± 0,08 m
spin1
nuclear quadrupole moment
datum otkrića1986
parity+

decay modeintensity
β (β decay)100%

233Ac

Maseni broj233
broj neutrona144
relative atomic mass
233,044346 ± 0,000014 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
143 ± 10 s
spin1/2
nuclear quadrupole moment
0
datum otkrića1983
parity+

decay modeintensity
β (β decay)100%

234Ac

Maseni broj234
broj neutrona145
relative atomic mass
234,048139 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
45 ± 2 s
spin1
nuclear quadrupole moment
datum otkrića1986
parity+

decay modeintensity
β (β decay)100%

235Ac

Maseni broj235
broj neutrona146
relative atomic mass
235,05084 ± 0,000015 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
62 ± 4 s
spin1/2
nuclear quadrupole moment
0
datum otkrića2006
parity+

decay modeintensity
β (β decay)100%

236Ac

Maseni broj236
broj neutrona147
relative atomic mass
236,054988 ± 0,000041 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,5 ± 3,6 m
spin3
nuclear quadrupole moment
datum otkrića2010
parity+

decay modeintensity
β (β decay)100%

237Ac

Maseni broj237
broj neutrona148
relative atomic mass
237,057993 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin1/2
nuclear quadrupole moment
0
datum otkrića
parity+

decay modeintensity
β (β decay)
Actinium sample (31481701837)
Electron shell 089 Actinium

historija

otkrivač ili izumiteljAndré Debierne
mjesto otkrićaFrance
datum otkrića1899
EtimologijaGreek: akis, aktinos (ray).
pronunciationak-TIN-i-em (engleski)

izvor

Abundance
Abundance in Earth's crust
0,00000000055 mg/kg
natural abundance (okean)
natural abundance (ljudsko tijelo)
0 %
natural abundance (Meteoroidi)
natural abundance (Sunce)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants