Radij

Radij (Ra)

chemical element with the atomic number of 88
Atomski broj88
Relativna atomska masa226
Maseni broj201
Skupina2
Perioda7
Bloks
proton88 p+
neutron113 n0
elektron88 e-
Animated Bohrov model atoma of Ra (Radij)

Physical Property

Atomski Radijus
215 pm
Molni volumen
Kovalentni Radijus
201 pm
Metallic Radius
Ionski radijus
148 pm
Crystal Radius
162 pm
Van der Waals radius
283 pm
gustoća
Atomic Radii Of The Elements: Radij0102030405060708090100110120130140150160170180190200210220230240250260270280290pmAtomski RadijusKovalentni RadijusMetallic RadiusVan der Waals radius

Kemijsko Svojstvo

energija
proton affinity
Elektronski afinitet
ionization energy
5,278424 eV/particle
ionization energy of Ra (Radij)
Toplina isparivanja
113 kJ/mol
toplina taljenja
9,6 kJ/mol
standard enthalpy of formation
159 kJ/mol
elektron
Elektronska ljuska2, 8, 18, 32, 18, 8, 2
Bohrov model atoma: Ra (Radij)
valence electron2
Lewis structure: Ra (Radij)
electron configuration[Rn] 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2
Enhanced Bohrov model atoma of Ra (Radij)
Orbital Diagram of Ra (Radij)
Oksidacijski broj2
Elektronegativnost
0.9
Electrophilicity Index
0,6982685447294388 eV/particle
fundamental state of matter
agregatno stanjeČvrsto
gaseous state of matter
Vrelište
Talište
969,15 K
critical pressure
critical temperature
Trojna točka
appearance
boja
Srebrna
appearancesilvery white metallic
Indeks prelamanja
thermodynamic material property
Toplinska vodljivost
Toplinsko istezanje
molar heat capacity
Specifični toplinski kapacitet
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1 MS/m
Električna otpornost i provodnost
0,000001 m Ω
Supravodljivost
Magnetizam
type
Magnetna susceptibilnost (Mass)
Magnetna susceptibilnost (Molar)
Magnetna susceptibilnost (Volume)
magnetic ordering
Curieva temperatura
Néel temperature
struktura
Kristalna strukturaKubna prostorno centrirana ()
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
bulk modulus
shear modulus
Youngov modul elastičnosti
Poissonov omjer
brzina zvuka
classification
KategorijaZemnoalkalijski metali, Alkaline earth metals
CAS GroupIIA
IUPAC GroupIIA
Glawe Number13
Mendeleev Number10
Pettifor Number13
Geochemical ClassU/Th decay series
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
246 ± 4 a₀
C6 Dispersion Coefficient
allotrope
Nuklearni udarni presjek
13
Neutron Mass Absorption
Kvantni brojevi1S0
space group229 (Im_3m)

Isotopes of Radium

Stabilni izotopi0
Nestabilni izotopi35
Natural Isotopes0

201Ra

Maseni broj201
neutron number113
Relativna atomska masa
201,012814699 ± 0,000021794 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
20 ± 30 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma2005
Parnost-

decay modeintensity
α (α emission)100%

202Ra

Maseni broj202
neutron number114
Relativna atomska masa
202,009742305 ± 0,000016122 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,1 ± 1,1 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma2005
Parnost+

decay modeintensity
α (α emission)100%

203Ra

Maseni broj203
neutron number115
Relativna atomska masa
203,009233907 ± 0,0000104 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
36 ± 13 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1996
Parnost-

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

204Ra

Maseni broj204
neutron number116
Relativna atomska masa
204,006506855 ± 0,00000958 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
60 ± 9 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1995
Parnost+

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

205Ra

Maseni broj205
neutron number117
Relativna atomska masa
205,006230692 ± 0,000024446 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
220 ± 50 ms
spin3/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1987
Parnost-

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

206Ra

Maseni broj206
neutron number118
Relativna atomska masa
206,003827842 ± 0,000019332 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
240 ± 20 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1967
Parnost+

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

207Ra

Maseni broj207
neutron number119
Relativna atomska masa
207,00377242 ± 0,000062572 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,38 ± 0,18 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1967
Parnost-

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

208Ra

Maseni broj208
neutron number120
Relativna atomska masa
208,001855012 ± 0,000009686 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,11 ± 0,045 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1967
Parnost+

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

209Ra

Maseni broj209
neutron number121
Relativna atomska masa
209,001994902 ± 0,000006169 Da
g-factor
0,3444 ± 0,0052
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,71 ± 0,08 s
spin5/2
nuclear quadrupole moment
0,39 ± 0,04
vrijeme otkrića ili izuma1967
Parnost-

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

210Ra

Maseni broj210
neutron number122
Relativna atomska masa
210,000475406 ± 0,000009868 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4 ± 0,1 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1967
Parnost+

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

211Ra

Maseni broj211
neutron number123
Relativna atomska masa
211,000893049 ± 0,000005331 Da
g-factor
0,3496 ± 0,0016
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,6 ± 1,2 s
spin5/2
nuclear quadrupole moment
0,46 ± 0,04
vrijeme otkrića ili izuma1967
Parnost-

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

212Ra

Maseni broj212
neutron number124
Relativna atomska masa
211,999786619 ± 0,000011007 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
13 ± 0,2 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1967
Parnost+

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

213Ra

Maseni broj213
neutron number125
Relativna atomska masa
213,000370971 ± 0,00001054 Da
g-factor
1,22 ± 0,004
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,73 ± 0,05 m
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1955
Parnost-

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

214Ra

Maseni broj214
neutron number126
Relativna atomska masa
214,00009956 ± 0,000005636 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,437 ± 0,016 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1967
Parnost+

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

215Ra

Maseni broj215
neutron number127
Relativna atomska masa
215,002718208 ± 0,00000773 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,669 ± 0,009 ms
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1967
Parnost+

decay modeintensity
α (α emission)100%

216Ra

Maseni broj216
neutron number128
Relativna atomska masa
216,003533534 ± 0,000008592 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
172 ± 7 ns
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1972
Parnost+

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

217Ra

Maseni broj217
neutron number129
Relativna atomska masa
217,006322676 ± 0,000007564 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,95 ± 0,12 us
spin9/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1970
Parnost+

decay modeintensity
α (α emission)100%

218Ra

Maseni broj218
neutron number130
Relativna atomska masa
218,007134297 ± 0,000010528 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
25,91 ± 0,14 us
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1970
Parnost+

decay modeintensity
α (α emission)100%

219Ra

Maseni broj219
neutron number131
Relativna atomska masa
219,010084715 ± 0,000007315 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
9 ± 2 ms
spin7/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1952
Parnost

decay modeintensity
α (α emission)100%

220Ra

Maseni broj220
neutron number132
Relativna atomska masa
220,011027542 ± 0,000008153 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
18,1 ± 1,2 ms
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1949
Parnost+

decay modeintensity
α (α emission)100%

221Ra

Maseni broj221
neutron number133
Relativna atomska masa
221,013917293 ± 0,00000497 Da
g-factor
−0,0716 ± 0,00068
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
25 ± 4 s
spin5/2
nuclear quadrupole moment
1,92 ± 0,06
vrijeme otkrića ili izuma1949
Parnost+

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

222Ra

Maseni broj222
neutron number134
Relativna atomska masa
222,015373371 ± 0,000004781 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
33,6 ± 0,4 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1948
Parnost+

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

223Ra

Maseni broj223
neutron number135
Relativna atomska masa
223,018500648 ± 0,000002243 Da
g-factor
0,17946666666667 ± 0,00053333333333333
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,4352 ± 0,001 d
spin3/2
nuclear quadrupole moment
1,22 ± 0,03
vrijeme otkrića ili izuma1905
Parnost+

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

224Ra

Maseni broj224
neutron number136
Relativna atomska masa
224,020210361 ± 0,000001944 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,6316 ± 0,0014 d
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1902
Parnost+

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

225Ra

Maseni broj225
neutron number137
Relativna atomska masa
225,023610502 ± 0,000002786 Da
g-factor
−1,46 ± 0,004
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
14,82 ± 0,19 d
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1947
Parnost+

decay modeintensity
β (β decay)100%

226Ra

Maseni broj226
neutron number138
Relativna atomska masa
226,025408186 ± 0,000002068 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,6 ± 0,007 ky
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1898
Parnost+

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

227Ra

Maseni broj227
neutron number139
Relativna atomska masa
227,029176205 ± 0,000002089 Da
g-factor
−0,26733333333333 ± 0,00073333333333333
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
42,2 ± 0,5 m
spin3/2
nuclear quadrupole moment
1,53 ± 0,06
vrijeme otkrića ili izuma1953
Parnost+

decay modeintensity
β (β decay)100%

228Ra

Maseni broj228
neutron number140
Relativna atomska masa
228,031068574 ± 0,000002141 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,75 ± 0,03 y
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1907
Parnost+

decay modeintensity
β (β decay)100%

229Ra

Maseni broj229
neutron number141
Relativna atomska masa
229,034956703 ± 0,000016576 Da
g-factor
0,19968 ± 0,00056
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4 ± 0,2 m
spin5/2
nuclear quadrupole moment
2,99 ± 0,12
vrijeme otkrića ili izuma1975
Parnost+

decay modeintensity
β (β decay)100%

230Ra

Maseni broj230
neutron number142
Relativna atomska masa
230,037054776 ± 0,000011053 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
93 ± 2 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1978
Parnost+

decay modeintensity
β (β decay)100%

231Ra

Maseni broj231
neutron number143
Relativna atomska masa
231,041027085 ± 0,000012206 Da
g-factor
−0,14216 ± 0,00044
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
104 ± 1 s
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma1983
Parnost+

decay modeintensity
β (β decay)100%

232Ra

Maseni broj232
neutron number144
Relativna atomska masa
232,043475267 ± 0,000009823 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4 ± 0,3 m
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1983
Parnost+

decay modeintensity
β (β decay)100%

233Ra

Maseni broj233
neutron number145
Relativna atomska masa
233,04759457 ± 0,000009235 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
30 ± 5 s
spin1/2
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1990
Parnost+

decay modeintensity
β (β decay)100%

234Ra

Maseni broj234
neutron number146
Relativna atomska masa
234,0503821 ± 0,000009 Da
g-factor
0
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
30 ± 10 s
spin0
nuclear quadrupole moment
0
vrijeme otkrića ili izuma1990
Parnost+

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

235Ra

Maseni broj235
neutron number147
Relativna atomska masa
235,05489 ± 0,000322 Da
g-factor
natural abundance
radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
vrijeme otkrića ili izuma
Parnost+

decay modeintensity
β (β decay)
Radium226

povijest

otkrio/izumioPierre and Marie Curie
location of discoveryFrance
vrijeme otkrića ili izuma1898
EtimologijaLatin: radius (ray).
pronunciationRAY-di-em (engleski)

source

Obilnost
Zastupljenost u Zemljinoj kori
0,0000009 mg/kg
natural abundance (ocean)
0,000000000089 mg/L
natural abundance (tijelo)
0,0000000000001 %
natural abundance (meteoroid)
natural abundance (Sunce)
Zastupljenost u svemiru
0 %

Nuclear Screening Constants