Radyûm

Radyûm (Ra)

chemical element with the atomic number of 88
Atomic Number88
Atomic Weight226
Hejmara baristeyî201
Group2
Period7
Blocks
Proton88 p+
Notron113 n0
Kareva88 e-
Animated Bohr model of Ra (Radyûm)

Physical Property

Atomic Radius
215 pm
molar volume
Covalent Radius
201 pm
Metallic Radius
ionic radius
148 pm
Crystal Radius
162 pm
Van der Waals radius
283 pm
density
Atomic Radii Of The Elements: Radyûm020406080100120140160180200220240260280300pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
ionization energy
5,278424 eV/particle
ionization energy of Ra (Radyûm)
enthalpy of vaporization
113 kJ/mol
enthalpy of fusion
9,6 kJ/mol
standard enthalpy of formation
159 kJ/mol
Kareva
electron shell2, 8, 18, 32, 18, 8, 2
Bohr model: Ra (Radyûm)
valence electron2
Lewis structure: Ra (Radyûm)
electron configuration[Rn] 7s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2
Enhanced Bohr model of Ra (Radyûm)
Orbital Diagram of Ra (Radyûm)
oxidation number2
electronegativity
0.9
Electrophilicity Index
0,6982685447294388 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
969,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearancesilvery white metallic
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
molar heat capacity
Specific Heat Capacity
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
1 MS/m
electrical resistivity
0,000001 m Ω
superconductivity
magnetism
type
magnetic susceptibility (Mass)
magnetic susceptibility (Molar)
magnetic susceptibility (Volume)
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureBody Centered Cubic ()
lattice constant
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
bulk modulus
shear modulus
Young's modulus
Poisson's ratio
Leza dengê
classification
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
246 ± 4 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
13
Neutron Mass Absorption
quantum number1S0
space group229 (Im_3m)

Isotopes of Radium

Stable Isotopes0
Unstable Isotopes35
Natural Isotopes0

201Ra

Hejmara baristeyî201
neutron number113
Giraniya atomê
201,012814699 ± 0,000021794 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
20 ± 30 ms
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2005
parity-

decay modeintensity
α (α emission)100%

202Ra

Hejmara baristeyî202
neutron number114
Giraniya atomê
202,009742305 ± 0,000016122 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4,1 ± 1,1 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2005
parity+

decay modeintensity
α (α emission)100%

203Ra

Hejmara baristeyî203
neutron number115
Giraniya atomê
203,009233907 ± 0,0000104 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
36 ± 13 ms
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1996
parity-

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

204Ra

Hejmara baristeyî204
neutron number116
Giraniya atomê
204,006506855 ± 0,00000958 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
60 ± 9 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1995
parity+

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

205Ra

Hejmara baristeyî205
neutron number117
Giraniya atomê
205,006230692 ± 0,000024446 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
220 ± 50 ms
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1987
parity-

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

206Ra

Hejmara baristeyî206
neutron number118
Giraniya atomê
206,003827842 ± 0,000019332 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
240 ± 20 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

207Ra

Hejmara baristeyî207
neutron number119
Giraniya atomê
207,00377242 ± 0,000062572 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,38 ± 0,18 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1967
parity-

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

208Ra

Hejmara baristeyî208
neutron number120
Giraniya atomê
208,001855012 ± 0,000009686 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,11 ± 0,045 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

209Ra

Hejmara baristeyî209
neutron number121
Giraniya atomê
209,001994902 ± 0,000006169 Da
g-factor
0,3444 ± 0,0052
natural abundance
radioactivity☢️ radioactive element
half-life
4,71 ± 0,08 s
spin5/2
nuclear quadrupole moment
0,39 ± 0,04
dema îcadkirinê yan keşfê1967
parity-

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

210Ra

Hejmara baristeyî210
neutron number122
Giraniya atomê
210,000475406 ± 0,000009868 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4 ± 0,1 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

211Ra

Hejmara baristeyî211
neutron number123
Giraniya atomê
211,000893049 ± 0,000005331 Da
g-factor
0,3496 ± 0,0016
natural abundance
radioactivity☢️ radioactive element
half-life
12,6 ± 1,2 s
spin5/2
nuclear quadrupole moment
0,46 ± 0,04
dema îcadkirinê yan keşfê1967
parity-

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

212Ra

Hejmara baristeyî212
neutron number124
Giraniya atomê
211,999786619 ± 0,000011007 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
13 ± 0,2 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

213Ra

Hejmara baristeyî213
neutron number125
Giraniya atomê
213,000370971 ± 0,00001054 Da
g-factor
1,22 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
2,73 ± 0,05 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1955
parity-

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

214Ra

Hejmara baristeyî214
neutron number126
Giraniya atomê
214,00009956 ± 0,000005636 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,437 ± 0,016 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

215Ra

Hejmara baristeyî215
neutron number127
Giraniya atomê
215,002718208 ± 0,00000773 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,669 ± 0,009 ms
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
α (α emission)100%

216Ra

Hejmara baristeyî216
neutron number128
Giraniya atomê
216,003533534 ± 0,000008592 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
172 ± 7 ns
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1972
parity+

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

217Ra

Hejmara baristeyî217
neutron number129
Giraniya atomê
217,006322676 ± 0,000007564 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,95 ± 0,12 us
spin9/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1970
parity+

decay modeintensity
α (α emission)100%

218Ra

Hejmara baristeyî218
neutron number130
Giraniya atomê
218,007134297 ± 0,000010528 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
25,91 ± 0,14 us
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1970
parity+

decay modeintensity
α (α emission)100%

219Ra

Hejmara baristeyî219
neutron number131
Giraniya atomê
219,010084715 ± 0,000007315 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
9 ± 2 ms
spin7/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1952
parity

decay modeintensity
α (α emission)100%

220Ra

Hejmara baristeyî220
neutron number132
Giraniya atomê
220,011027542 ± 0,000008153 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
18,1 ± 1,2 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1949
parity+

decay modeintensity
α (α emission)100%

221Ra

Hejmara baristeyî221
neutron number133
Giraniya atomê
221,013917293 ± 0,00000497 Da
g-factor
-0,0716 ± 0,00068
natural abundance
radioactivity☢️ radioactive element
half-life
25 ± 4 s
spin5/2
nuclear quadrupole moment
1,92 ± 0,06
dema îcadkirinê yan keşfê1949
parity+

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

222Ra

Hejmara baristeyî222
neutron number134
Giraniya atomê
222,015373371 ± 0,000004781 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
33,6 ± 0,4 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1948
parity+

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

223Ra

Hejmara baristeyî223
neutron number135
Giraniya atomê
223,018500648 ± 0,000002243 Da
g-factor
0,17946666666667 ± 0,00053333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
11,4352 ± 0,001 d
spin3/2
nuclear quadrupole moment
1,22 ± 0,03
dema îcadkirinê yan keşfê1905
parity+

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

224Ra

Hejmara baristeyî224
neutron number136
Giraniya atomê
224,020210361 ± 0,000001944 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
3,6316 ± 0,0014 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1902
parity+

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

225Ra

Hejmara baristeyî225
neutron number137
Giraniya atomê
225,023610502 ± 0,000002786 Da
g-factor
-1,46 ± 0,004
natural abundance
radioactivity☢️ radioactive element
half-life
14,82 ± 0,19 d
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1947
parity+

decay modeintensity
β (β decay)100%

226Ra

Hejmara baristeyî226
neutron number138
Giraniya atomê
226,025408186 ± 0,000002068 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,6 ± 0,007 ky
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1898
parity+

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

227Ra

Hejmara baristeyî227
neutron number139
Giraniya atomê
227,029176205 ± 0,000002089 Da
g-factor
-0,26733333333333 ± 0,00073333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
42,2 ± 0,5 m
spin3/2
nuclear quadrupole moment
1,53 ± 0,06
dema îcadkirinê yan keşfê1953
parity+

decay modeintensity
β (β decay)100%

228Ra

Hejmara baristeyî228
neutron number140
Giraniya atomê
228,031068574 ± 0,000002141 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5,75 ± 0,03 y
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1907
parity+

decay modeintensity
β (β decay)100%

229Ra

Hejmara baristeyî229
neutron number141
Giraniya atomê
229,034956703 ± 0,000016576 Da
g-factor
0,19968 ± 0,00056
natural abundance
radioactivity☢️ radioactive element
half-life
4 ± 0,2 m
spin5/2
nuclear quadrupole moment
2,99 ± 0,12
dema îcadkirinê yan keşfê1975
parity+

decay modeintensity
β (β decay)100%

230Ra

Hejmara baristeyî230
neutron number142
Giraniya atomê
230,037054776 ± 0,000011053 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
93 ± 2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1978
parity+

decay modeintensity
β (β decay)100%

231Ra

Hejmara baristeyî231
neutron number143
Giraniya atomê
231,041027085 ± 0,000012206 Da
g-factor
-0,14216 ± 0,00044
natural abundance
radioactivity☢️ radioactive element
half-life
104 ± 1 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1983
parity+

decay modeintensity
β (β decay)100%

232Ra

Hejmara baristeyî232
neutron number144
Giraniya atomê
232,043475267 ± 0,000009823 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
4 ± 0,3 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1983
parity+

decay modeintensity
β (β decay)100%

233Ra

Hejmara baristeyî233
neutron number145
Giraniya atomê
233,04759457 ± 0,000009235 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
30 ± 5 s
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1990
parity+

decay modeintensity
β (β decay)100%

234Ra

Hejmara baristeyî234
neutron number146
Giraniya atomê
234,0503821 ± 0,000009 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
30 ± 10 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1990
parity+

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

235Ra

Hejmara baristeyî235
neutron number147
Giraniya atomê
235,05489 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê
parity+

decay modeintensity
β (β decay)
Radium226

dîrok

kaşîf an îcadkerPierre and Marie Curie
location of discoveryFrance
dema îcadkirinê yan keşfê1898
BêjenasîLatin: radius (ray).
pronunciationRAY-di-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
0,0000009 mg/kg
natural abundance (Okyanûs)
0,000000000089 mg/L
natural abundance (human body)
0,0000000000001 %
natural abundance (meteoroid)
natural abundance (Roj)
Abundance in Universe
0 %

Nuclear Screening Constants