Radium

Radium (Ra)

chemical element with the atomic number of 88
Atomic Number88
Atomic Weight226
Nombor jisim201
Group2
Period7
Blocks
proton88 p+
neutron113 n0
Elektron88 e-
Animated Model Bohr of Ra (Radium)

Sifat Fizikal

Jejari Atom
molar volume
Jejari kovalen
Metallic Radius
ionic radius
Crystal Radius
Jejari van der Waals
ketumpatan
Atomic Radii Of The Elements: Radium0102030405060708090100110120130140150160170180190200210220230240250260270280290pmJejari AtomJejari KovalenMetallic RadiusJejari van der Waals

Sifat Kimia

tenaga
proton affinity
Pertalian elektron
ionization energy
ionization energy of Ra (Radium)
Entalpi pengewapan
entalpi pelakuran
standard enthalpy of formation
Elektron
Petala elektron2, 8, 18, 32, 18, 8, 2
Model Bohr: Ra (Radium)
Elektron valens2
Teori ion Lewis: Ra (Radium)
tatarajah elektron[Rn] 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2
Enhanced Model Bohr of Ra (Radium)
Orbital Diagram of Ra (Radium)
Keadaan pengoksidaan2
Keelektronegatifan
0.9
Electrophilicity Index
keadaan jirim asas
fasa jirimSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
rupa
warna
Silver
rupasilvery white metallic
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
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 StructureBody Centered Cubic ()
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
Modulus pukal
shear modulus
Young's modulus
Nisbah Poisson
Kelajuan bunyi
pengelasan
CategoryAlkaline earth metals, Alkaline earth metals
CAS GroupIIA
IUPAC GroupIIA
Glawe Number13
Mendeleev Number10
Pettifor Number13
Geochemical ClassU/Th decay series
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Neutron cross section
13
Neutron Mass Absorption
Nombor kuantum1S0
space group229 (Im_3m)

Isotopes of Radium

Stable Isotopes0
Unstable Isotopes35
Natural Isotopes0

201Ra

Nombor jisim201
nombor neutron113
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
20 ± 30 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan2005
parity-

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

202Ra

Nombor jisim202
nombor neutron114
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.1 ± 1.1 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan2005
parity+

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

203Ra

Nombor jisim203
nombor neutron115
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
36 ± 13 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan1996
parity-

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

204Ra

Nombor jisim204
nombor neutron116
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
60 ± 9 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1995
parity+

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

205Ra

Nombor jisim205
nombor neutron117
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
220 ± 50 ms
Spin3/2
nuclear quadrupole moment
tarikh penemuan1987
parity-

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

206Ra

Nombor jisim206
nombor neutron118
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
240 ± 20 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1967
parity+

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

207Ra

Nombor jisim207
nombor neutron119
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.38 ± 0.18 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan1967
parity-

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

208Ra

Nombor jisim208
nombor neutron120
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.11 ± 0.045 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1967
parity+

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

209Ra

Nombor jisim209
nombor neutron121
Jisim Atom Relatif
g-factor
0.3444 ± 0.0052
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4.71 ± 0.08 s
Spin5/2
nuclear quadrupole moment
0.39 ± 0.04
tarikh penemuan1967
parity-

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

210Ra

Nombor jisim210
nombor neutron122
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4 ± 0.1 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1967
parity+

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

211Ra

Nombor jisim211
nombor neutron123
Jisim Atom Relatif
g-factor
0.3496 ± 0.0016
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
12.6 ± 1.2 s
Spin5/2
nuclear quadrupole moment
0.46 ± 0.04
tarikh penemuan1967
parity-

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

212Ra

Nombor jisim212
nombor neutron124
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
13 ± 0.2 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1967
parity+

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

213Ra

Nombor jisim213
nombor neutron125
Jisim Atom Relatif
g-factor
1.22 ± 0.004
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.73 ± 0.05 m
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1955
parity-

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

214Ra

Nombor jisim214
nombor neutron126
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
2.437 ± 0.016 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1967
parity+

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

215Ra

Nombor jisim215
nombor neutron127
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.669 ± 0.009 ms
Spin9/2
nuclear quadrupole moment
tarikh penemuan1967
parity+

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

216Ra

Nombor jisim216
nombor neutron128
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
172 ± 7 ns
Spin0
nuclear quadrupole moment
0
tarikh penemuan1972
parity+

decay modeKeamatan (fizik)
α (α emission)100%
ϵ (electron capture)1%

217Ra

Nombor jisim217
nombor neutron129
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.95 ± 0.12 us
Spin9/2
nuclear quadrupole moment
tarikh penemuan1970
parity+

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

218Ra

Nombor jisim218
nombor neutron130
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
25.91 ± 0.14 us
Spin0
nuclear quadrupole moment
0
tarikh penemuan1970
parity+

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

219Ra

Nombor jisim219
nombor neutron131
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
9 ± 2 ms
Spin7/2
nuclear quadrupole moment
tarikh penemuan1952
parity

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

220Ra

Nombor jisim220
nombor neutron132
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
18.1 ± 1.2 ms
Spin0
nuclear quadrupole moment
0
tarikh penemuan1949
parity+

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

221Ra

Nombor jisim221
nombor neutron133
Jisim Atom Relatif
g-factor
-0.0716 ± 0.00068
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
25 ± 4 s
Spin5/2
nuclear quadrupole moment
1.92 ± 0.06
tarikh penemuan1949
parity+

decay modeKeamatan (fizik)
α (α emission)100%
14C1.2%

222Ra

Nombor jisim222
nombor neutron134
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
33.6 ± 0.4 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1948
parity+

decay modeKeamatan (fizik)
α (α emission)100%
14C3%

223Ra

Nombor jisim223
nombor neutron135
Jisim Atom Relatif
g-factor
0.17946666666667 ± 0.00053333333333333
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
11.4352 ± 0.001 d
Spin3/2
nuclear quadrupole moment
1.22 ± 0.03
tarikh penemuan1905
parity+

decay modeKeamatan (fizik)
α (α emission)100%
14C8.9%

224Ra

Nombor jisim224
nombor neutron136
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
3.6316 ± 0.0014 d
Spin0
nuclear quadrupole moment
0
tarikh penemuan1902
parity+

decay modeKeamatan (fizik)
α (α emission)100%
14C4%

225Ra

Nombor jisim225
nombor neutron137
Jisim Atom Relatif
g-factor
-1.46 ± 0.004
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
14.82 ± 0.19 d
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1947
parity+

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

226Ra

Nombor jisim226
nombor neutron138
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
1.6 ± 0.007 ky
Spin0
nuclear quadrupole moment
0
tarikh penemuan1898
parity+

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

227Ra

Nombor jisim227
nombor neutron139
Jisim Atom Relatif
g-factor
-0.26733333333333 ± 0.00073333333333333
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
42.2 ± 0.5 m
Spin3/2
nuclear quadrupole moment
1.53 ± 0.06
tarikh penemuan1953
parity+

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

228Ra

Nombor jisim228
nombor neutron140
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
5.75 ± 0.03 y
Spin0
nuclear quadrupole moment
0
tarikh penemuan1907
parity+

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

229Ra

Nombor jisim229
nombor neutron141
Jisim Atom Relatif
g-factor
0.19968 ± 0.00056
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4 ± 0.2 m
Spin5/2
nuclear quadrupole moment
2.99 ± 0.12
tarikh penemuan1975
parity+

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

230Ra

Nombor jisim230
nombor neutron142
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
93 ± 2 m
Spin0
nuclear quadrupole moment
0
tarikh penemuan1978
parity+

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

231Ra

Nombor jisim231
nombor neutron143
Jisim Atom Relatif
g-factor
-0.14216 ± 0.00044
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
104 ± 1 s
Spin5/2
nuclear quadrupole moment
tarikh penemuan1983
parity+

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

232Ra

Nombor jisim232
nombor neutron144
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
4 ± 0.3 m
Spin0
nuclear quadrupole moment
0
tarikh penemuan1983
parity+

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

233Ra

Nombor jisim233
nombor neutron145
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
30 ± 5 s
Spin1/2
nuclear quadrupole moment
0
tarikh penemuan1990
parity+

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

234Ra

Nombor jisim234
nombor neutron146
Jisim Atom Relatif
g-factor
0
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
30 ± 10 s
Spin0
nuclear quadrupole moment
0
tarikh penemuan1990
parity+

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

235Ra

Nombor jisim235
nombor neutron147
Jisim Atom Relatif
g-factor
natural abundance
Reputan radioaktif☢️ radioactive element
setengah hayat
Spin5/2
nuclear quadrupole moment
tarikh penemuan
parity+

decay modeKeamatan (fizik)
β (β decay)
Radium226

sejarah

penemu atau perekaPierre and Marie Curie
tempat penemuanFrance
tarikh penemuan1898
EtimologiLatin: radius (ray).
sebutanRAY-di-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust
natural abundance (lautan)
natural abundance (Tubuh manusia)
0.0000000000001 %
natural abundance (Meteoroid)
natural abundance (Matahari)
Abundance in Universe
0 %

Nuclear Screening Constants