Radioa

Radioa (Ra)

88 zenbaki atomikoa duen elementu kimikoa
Atomic Number88
Atomic Weight226
masa-zenbaki201
Group2
Period7
Blocks
protoi88 p+
neutroi113 n0
elektroi88 e-
Animated Bohrren eredu atomikoa of Ra (Radioa)

Propietate Fisiko

Erradio Atomiko
215 pm
bolumen molar
Erradio Kobalente
201 pm
Metallic Radius
Erradio ioniko
148 pm
Crystal Radius
162 pm
Van der Waalsen erradio
283 pm
dentsitatea
Atomic Radii Of The Elements: Radioa0102030405060708090100110120130140150160170180190200210220230240250260270280290pmErradio AtomikoErradio KobalenteMetallic RadiusVan der Waalsen erradio

Magnitude Fisiko

energia
proton affinity
Afinitate elektroniko
ionizazio energia
5,278424 eV/particle
ionizazio energia of Ra (Radioa)
Irakite-entalpia
113 kJ/mol
urtze-entalpia
9,6 kJ/mol
formazio entalpia estandarra
159 kJ/mol
elektroi
elektroi geruza2, 8, 18, 32, 18, 8, 2
Bohrren eredu atomikoa: Ra (Radioa)
balentzia-elektroi2
Lewis egitura: Ra (Radioa)
electron configuration[Rn] 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2
Enhanced Bohrren eredu atomikoa of Ra (Radioa)
Orbital Diagram of Ra (Radioa)
Oxidazio-egoera2
Elektronegatibotasun
0.9
Electrophilicity Index
0,6982685447294388 eV/particle
materiaren funtsezko egoera
materiaren egoeraSolid
materiaren egoera gaseoso
Boiling Point
Melting Point
969,15 K
critical pressure
critical temperature
Puntu hirukoitz
appearance
kolore
Silver
appearancesilvery white metallic
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
Bero-dilatazio
molar heat capacity
Specific Heat Capacity
indize adiabatiko
electrical properties
typeConductor
Eroankortasun elektriko
1 MS/m
Erresistibitate elektriko
0,000001 m Ω
Supereroankortasun
Magnetismo
type
suszeptibilitate magnetiko (Mass)
suszeptibilitate magnetiko (Molar)
suszeptibilitate magnetiko (Volume)
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal StructureBody Centered Cubic ()
lattice constant
Lattice Anglesπ/2, π/2, π/2
materialen propietate mekaniko
Gogortasun
konprimagarritasun-modulu
Zizaila modulua
Youngen modulu
Poissonen modulu
Soinuaren lastertasun
classification
CategoryAlkaline earth metals, Alkaline earth metals
CAS GroupIIA
IUPAC GroupIIA
Glawe Number13
Mendeleev Number10
Pettifor Number13
Geochemical ClassU/Th decay series
Goldschmidt classificationlitophile

beste batzuk

Gas Basicity
polarizability
246 ± 4 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
13
Neutron Mass Absorption
zenbaki kuantiko1S0
talde espazial229 (Im_3m)

Isotopes of Radium

Stable Isotopes0
Unstable Isotopes35
Natural Isotopes0

201Ra

masa-zenbaki201
neutron number113
atomo-masa erlatibo
201,012814699 ± 0,000021794 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
20 ± 30 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data2005
parity-

decay modeintensity
α (α emission)100%

202Ra

masa-zenbaki202
neutron number114
atomo-masa erlatibo
202,009742305 ± 0,000016122 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,1 ± 1,1 ms
spin0
nuclear quadrupole moment
0
aurkikuntza-data2005
parity+

decay modeintensity
α (α emission)100%

203Ra

masa-zenbaki203
neutron number115
atomo-masa erlatibo
203,009233907 ± 0,0000104 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
36 ± 13 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data1996
parity-

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

204Ra

masa-zenbaki204
neutron number116
atomo-masa erlatibo
204,006506855 ± 0,00000958 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
60 ± 9 ms
spin0
nuclear quadrupole moment
0
aurkikuntza-data1995
parity+

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

205Ra

masa-zenbaki205
neutron number117
atomo-masa erlatibo
205,006230692 ± 0,000024446 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
220 ± 50 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data1987
parity-

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

206Ra

masa-zenbaki206
neutron number118
atomo-masa erlatibo
206,003827842 ± 0,000019332 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
240 ± 20 ms
spin0
nuclear quadrupole moment
0
aurkikuntza-data1967
parity+

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

207Ra

masa-zenbaki207
neutron number119
atomo-masa erlatibo
207,00377242 ± 0,000062572 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,38 ± 0,18 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data1967
parity-

decay modeintensity
α (α emission)86%
β+ (β+ decay; β+ = ϵ + e+)

208Ra

masa-zenbaki208
neutron number120
atomo-masa erlatibo
208,001855012 ± 0,000009686 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,11 ± 0,045 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data1967
parity+

decay modeintensity
α (α emission)87%
β+ (β+ decay; β+ = ϵ + e+)

209Ra

masa-zenbaki209
neutron number121
atomo-masa erlatibo
209,001994902 ± 0,000006169 Da
g-factor
0,3444 ± 0,0052
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4,71 ± 0,08 s
spin5/2
nuclear quadrupole moment
0,39 ± 0,04
aurkikuntza-data1967
parity-

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

210Ra

masa-zenbaki210
neutron number122
atomo-masa erlatibo
210,000475406 ± 0,000009868 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4 ± 0,1 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data1967
parity+

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

211Ra

masa-zenbaki211
neutron number123
atomo-masa erlatibo
211,000893049 ± 0,000005331 Da
g-factor
0,3496 ± 0,0016
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
12,6 ± 1,2 s
spin5/2
nuclear quadrupole moment
0,46 ± 0,04
aurkikuntza-data1967
parity-

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

212Ra

masa-zenbaki212
neutron number124
atomo-masa erlatibo
211,999786619 ± 0,000011007 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
13 ± 0,2 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data1967
parity+

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

213Ra

masa-zenbaki213
neutron number125
atomo-masa erlatibo
213,000370971 ± 0,00001054 Da
g-factor
1,22 ± 0,004
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,73 ± 0,05 m
spin1/2
nuclear quadrupole moment
0
aurkikuntza-data1955
parity-

decay modeintensity
α (α emission)87%
β+ (β+ decay; β+ = ϵ + e+)13%

214Ra

masa-zenbaki214
neutron number126
atomo-masa erlatibo
214,00009956 ± 0,000005636 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,437 ± 0,016 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data1967
parity+

decay modeintensity
α (α emission)99.941%
β+ (β+ decay; β+ = ϵ + e+)0.059%

215Ra

masa-zenbaki215
neutron number127
atomo-masa erlatibo
215,002718208 ± 0,00000773 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,669 ± 0,009 ms
spin9/2
nuclear quadrupole moment
aurkikuntza-data1967
parity+

decay modeintensity
α (α emission)100%

216Ra

masa-zenbaki216
neutron number128
atomo-masa erlatibo
216,003533534 ± 0,000008592 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
172 ± 7 ns
spin0
nuclear quadrupole moment
0
aurkikuntza-data1972
parity+

decay modeintensity
α (α emission)100%
ϵ (electron capture)1%

217Ra

masa-zenbaki217
neutron number129
atomo-masa erlatibo
217,006322676 ± 0,000007564 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,95 ± 0,12 us
spin9/2
nuclear quadrupole moment
aurkikuntza-data1970
parity+

decay modeintensity
α (α emission)100%

218Ra

masa-zenbaki218
neutron number130
atomo-masa erlatibo
218,007134297 ± 0,000010528 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
25,91 ± 0,14 us
spin0
nuclear quadrupole moment
0
aurkikuntza-data1970
parity+

decay modeintensity
α (α emission)100%

219Ra

masa-zenbaki219
neutron number131
atomo-masa erlatibo
219,010084715 ± 0,000007315 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
9 ± 2 ms
spin7/2
nuclear quadrupole moment
aurkikuntza-data1952
parity

decay modeintensity
α (α emission)100%

220Ra

masa-zenbaki220
neutron number132
atomo-masa erlatibo
220,011027542 ± 0,000008153 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
18,1 ± 1,2 ms
spin0
nuclear quadrupole moment
0
aurkikuntza-data1949
parity+

decay modeintensity
α (α emission)100%

221Ra

masa-zenbaki221
neutron number133
atomo-masa erlatibo
221,013917293 ± 0,00000497 Da
g-factor
−0,0716 ± 0,00068
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
25 ± 4 s
spin5/2
nuclear quadrupole moment
1,92 ± 0,06
aurkikuntza-data1949
parity+

decay modeintensity
α (α emission)100%
14C1.2%

222Ra

masa-zenbaki222
neutron number134
atomo-masa erlatibo
222,015373371 ± 0,000004781 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
33,6 ± 0,4 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data1948
parity+

decay modeintensity
α (α emission)100%
14C3%

223Ra

masa-zenbaki223
neutron number135
atomo-masa erlatibo
223,018500648 ± 0,000002243 Da
g-factor
0,17946666666667 ± 0,00053333333333333
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
11,4352 ± 0,001 d
spin3/2
nuclear quadrupole moment
1,22 ± 0,03
aurkikuntza-data1905
parity+

decay modeintensity
α (α emission)100%
14C8.9%

224Ra

masa-zenbaki224
neutron number136
atomo-masa erlatibo
224,020210361 ± 0,000001944 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
3,6316 ± 0,0014 d
spin0
nuclear quadrupole moment
0
aurkikuntza-data1902
parity+

decay modeintensity
α (α emission)100%
14C4%

225Ra

masa-zenbaki225
neutron number137
atomo-masa erlatibo
225,023610502 ± 0,000002786 Da
g-factor
−1,46 ± 0,004
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
14,82 ± 0,19 d
spin1/2
nuclear quadrupole moment
0
aurkikuntza-data1947
parity+

decay modeintensity
β (β decay)100%

226Ra

masa-zenbaki226
neutron number138
atomo-masa erlatibo
226,025408186 ± 0,000002068 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,6 ± 0,007 ky
spin0
nuclear quadrupole moment
0
aurkikuntza-data1898
parity+

decay modeintensity
α (α emission)100%
14C2.6%
(double β decay)

227Ra

masa-zenbaki227
neutron number139
atomo-masa erlatibo
227,029176205 ± 0,000002089 Da
g-factor
−0,26733333333333 ± 0,00073333333333333
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
42,2 ± 0,5 m
spin3/2
nuclear quadrupole moment
1,53 ± 0,06
aurkikuntza-data1953
parity+

decay modeintensity
β (β decay)100%

228Ra

masa-zenbaki228
neutron number140
atomo-masa erlatibo
228,031068574 ± 0,000002141 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
5,75 ± 0,03 y
spin0
nuclear quadrupole moment
0
aurkikuntza-data1907
parity+

decay modeintensity
β (β decay)100%

229Ra

masa-zenbaki229
neutron number141
atomo-masa erlatibo
229,034956703 ± 0,000016576 Da
g-factor
0,19968 ± 0,00056
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4 ± 0,2 m
spin5/2
nuclear quadrupole moment
2,99 ± 0,12
aurkikuntza-data1975
parity+

decay modeintensity
β (β decay)100%

230Ra

masa-zenbaki230
neutron number142
atomo-masa erlatibo
230,037054776 ± 0,000011053 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
93 ± 2 m
spin0
nuclear quadrupole moment
0
aurkikuntza-data1978
parity+

decay modeintensity
β (β decay)100%

231Ra

masa-zenbaki231
neutron number143
atomo-masa erlatibo
231,041027085 ± 0,000012206 Da
g-factor
−0,14216 ± 0,00044
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
104 ± 1 s
spin5/2
nuclear quadrupole moment
aurkikuntza-data1983
parity+

decay modeintensity
β (β decay)100%

232Ra

masa-zenbaki232
neutron number144
atomo-masa erlatibo
232,043475267 ± 0,000009823 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
4 ± 0,3 m
spin0
nuclear quadrupole moment
0
aurkikuntza-data1983
parity+

decay modeintensity
β (β decay)100%

233Ra

masa-zenbaki233
neutron number145
atomo-masa erlatibo
233,04759457 ± 0,000009235 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
30 ± 5 s
spin1/2
nuclear quadrupole moment
0
aurkikuntza-data1990
parity+

decay modeintensity
β (β decay)100%

234Ra

masa-zenbaki234
neutron number146
atomo-masa erlatibo
234,0503821 ± 0,000009 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
30 ± 10 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data1990
parity+

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

235Ra

masa-zenbaki235
neutron number147
atomo-masa erlatibo
235,05489 ± 0,000322 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin5/2
nuclear quadrupole moment
aurkikuntza-data
parity+

decay modeintensity
β (β decay)
Radium226

historia

aurkitzailea edo asmatzaileaPierre and Marie Curie
aurkikuntzaren lekuaFrance
aurkikuntza-data1898
etimologiaLatin: radius (ray).
pronunciationRAY-di-em (ingelesa)

source

Abundance
Abundance in Earth's crust
0,0000009 mg/kg
natural abundance (ozeano)
0,000000000089 mg/L
natural abundance (gizakiaren gorputza)
0,0000000000001 %
natural abundance (Meteoroide)
natural abundance (Eguzkia)
Abundance in Universe
0 %

Nuclear Screening Constants