Aktinyûm

Aktinyûm (Ac)

chemical element with the atomic number of 89
Atomic Number89
Atomic Weight227
Hejmara baristeyî205
Group3
Period7
Blockd
Proton89 p+
Notron116 n0
Kareva89 e-
Animated Bohr model of Ac (Aktinyûm)

Physical Property

Atomic Radius
195 pm
molar volume
22,54 cm³/mol
Covalent Radius
186 pm
Metallic Radius
ionic radius
112 pm
Crystal Radius
126 pm
Van der Waals radius
247 pm
density
Atomic Radii Of The Elements: Aktinyûm0102030405060708090100110120130140150160170180190200210220230240250pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
5,380226 eV/particle
ionization energy of Ac (Aktinyûm)
enthalpy of vaporization
292,9 kJ/mol
enthalpy of fusion
10,5 kJ/mol
standard enthalpy of formation
406 kJ/mol
Kareva
electron shell2, 8, 18, 32, 18, 9, 2
Bohr model: Ac (Aktinyûm)
valence electron2
Lewis structure: Ac (Aktinyûm)
electron configuration[Rn] 6d1 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 6d1 7s2
Enhanced Bohr model of Ac (Aktinyûm)
Orbital Diagram of Ac (Aktinyûm)
oxidation number2, 3
electronegativity
1.1
Electrophilicity Index
0,8159546412794374 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
3.473,15 K
Melting Point
1.323,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
type
electrical conductivity
electrical resistivity
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureFace Centered Cubic (FCC)
lattice constant
5,31 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Leza dengê
classification
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
quantum number2D3/2
space group225 (Fm_3m)

Isotopes of Actinium

Stable Isotopes0
Unstable Isotopes33
Natural Isotopes0

205Ac

Hejmara baristeyî205
neutron number116
Giraniya atomê
205,015144152 ± 0,000063682 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
80 ± 60 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2014
parity-

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

206Ac

Hejmara baristeyî206
neutron number117
Giraniya atomê
206,014476477 ± 0,000069874 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
25 ± 7 ms
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1998
parity+

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

207Ac

Hejmara baristeyî207
neutron number118
Giraniya atomê
207,011965967 ± 0,000060384 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
31 ± 8 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1994
parity-

decay modeintensity
α (α emission)100%

208Ac

Hejmara baristeyî208
neutron number119
Giraniya atomê
208,011552251 ± 0,000069225 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
97 ± 15 ms
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1994
parity+

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

209Ac

Hejmara baristeyî209
neutron number120
Giraniya atomê
209,009495375 ± 0,000059953 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
94 ± 10 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity-

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

210Ac

Hejmara baristeyî210
neutron number121
Giraniya atomê
210,009408625 ± 0,000066782 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
350 ± 40 ms
spin7
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity+

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

211Ac

Hejmara baristeyî211
neutron number122
Giraniya atomê
211,007668846 ± 0,000057706 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
213 ± 25 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity-

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

212Ac

Hejmara baristeyî212
neutron number123
Giraniya atomê
212,007836442 ± 0,000023492 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
895 ± 28 ms
spin7
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity+

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

213Ac

Hejmara baristeyî213
neutron number124
Giraniya atomê
213,006592665 ± 0,000012522 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
738 ± 16 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity-

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

214Ac

Hejmara baristeyî214
neutron number125
Giraniya atomê
214,0069064 ± 0,000014547 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
8,2 ± 0,2 s
spin5
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity+

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

215Ac

Hejmara baristeyî215
neutron number126
Giraniya atomê
215,006474061 ± 0,000013318 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
171 ± 10 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity-

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

216Ac

Hejmara baristeyî216
neutron number127
Giraniya atomê
216,008749101 ± 0,000009908 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
440 ± 16 us
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1967
parity-

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

217Ac

Hejmara baristeyî217
neutron number128
Giraniya atomê
217,009342325 ± 0,000012048 Da
g-factor
0,85111111111111 ± 0,011111111111111
natural abundance
radioactivity☢️ radioactive element
half-life
69 ± 4 ns
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1972
parity-

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

218Ac

Hejmara baristeyî218
neutron number129
Giraniya atomê
218,01164886 ± 0,000061853 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1 ± 0,04 us
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity-

decay modeintensity
α (α emission)100%

219Ac

Hejmara baristeyî219
neutron number130
Giraniya atomê
219,012420425 ± 0,000055263 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9,4 ± 1 us
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity-

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

220Ac

Hejmara baristeyî220
neutron number131
Giraniya atomê
220,014754527 ± 0,000006579 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
26,36 ± 0,19 ms
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity-

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

221Ac

Hejmara baristeyî221
neutron number132
Giraniya atomê
221,015599721 ± 0,000061086 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
52 ± 2 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1968
parity-

decay modeintensity
α (α emission)100%

222Ac

Hejmara baristeyî222
neutron number133
Giraniya atomê
222,017844232 ± 0,000005044 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5 ± 0,5 s
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1949
parity-

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

223Ac

Hejmara baristeyî223
neutron number134
Giraniya atomê
223,019135982 ± 0,000007457 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,1 ± 0,05 m
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1948
parity-

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

224Ac

Hejmara baristeyî224
neutron number135
Giraniya atomê
224,021722249 ± 0,000004389 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,78 ± 0,16 h
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1948
parity-

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

225Ac

Hejmara baristeyî225
neutron number136
Giraniya atomê
225,023228601 ± 0,000005107 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9,919 ± 0,0021 d
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1947
parity-

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

226Ac

Hejmara baristeyî226
neutron number137
Giraniya atomê
226,026096999 ± 0,000003327 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
29,37 ± 0,12 h
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1950
parity-

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

227Ac

Hejmara baristeyî227
neutron number138
Giraniya atomê
227,027750594 ± 0,000002068 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
21,772 ± 0,003 y
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1851
parity-

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

228Ac

Hejmara baristeyî228
neutron number139
Giraniya atomê
228,031019685 ± 0,000002247 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
6,15 ± 0,02 h
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê1908
parity+

decay modeintensity
β (β decay)100%

229Ac

Hejmara baristeyî229
neutron number140
Giraniya atomê
229,032947 ± 0,000013 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
62,7 ± 0,5 m
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1952
parity+

decay modeintensity
β (β decay)100%

230Ac

Hejmara baristeyî230
neutron number141
Giraniya atomê
230,036327 ± 0,000017 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
122 ± 3 s
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1973
parity+

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

231Ac

Hejmara baristeyî231
neutron number142
Giraniya atomê
231,038393 ± 0,000014 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
7,5 ± 0,1 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1973
parity+

decay modeintensity
β (β decay)100%

232Ac

Hejmara baristeyî232
neutron number143
Giraniya atomê
232,042034 ± 0,000014 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,98 ± 0,08 m
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1986
parity+

decay modeintensity
β (β decay)100%

233Ac

Hejmara baristeyî233
neutron number144
Giraniya atomê
233,044346 ± 0,000014 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
143 ± 10 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1983
parity+

decay modeintensity
β (β decay)100%

234Ac

Hejmara baristeyî234
neutron number145
Giraniya atomê
234,048139 ± 0,000015 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
45 ± 2 s
spin1
nuclear quadrupole moment
dema îcadkirinê yan keşfê1986
parity+

decay modeintensity
β (β decay)100%

235Ac

Hejmara baristeyî235
neutron number146
Giraniya atomê
235,05084 ± 0,000015 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
62 ± 4 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2006
parity+

decay modeintensity
β (β decay)100%

236Ac

Hejmara baristeyî236
neutron number147
Giraniya atomê
236,054988 ± 0,000041 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
4,5 ± 3,6 m
spin3
nuclear quadrupole moment
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)100%

237Ac

Hejmara baristeyî237
neutron number148
Giraniya atomê
237,057993 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê
parity+

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

dîrok

kaşîf an îcadkerAndré Debierne
location of discoveryFrance
dema îcadkirinê yan keşfê1899
BêjenasîGreek: akis, aktinos (ray).
pronunciationak-TIN-i-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
0,00000000055 mg/kg
natural abundance (Okyanûs)
natural abundance (human body)
0 %
natural abundance (meteoroid)
natural abundance (Roj)
0 %
Abundance in Universe
0 %

Nuclear Screening Constants