Baryûm

Baryûm (Ba)

chemical element with symbol Ba and atomic number 56
Atomic Number56
Atomic Weight137.327
Hejmara baristeyî138
Group2
Period6
Blocks
Proton56 p+
Notron82 n0
Kareva56 e-
Animated Bohr model of Ba (Baryûm)

Physical Property

Atomic Radius
215 pm
molar volume
Covalent Radius
196 pm
Metallic Radius
198 pm
ionic radius
135 pm
Crystal Radius
149 pm
Van der Waals radius
268 pm
density
3,62 g/cm³
Atomic Radii Of The Elements: Baryûm0102030405060708090100110120130140150160170180190200210220230240250260270pmAtomic RadiusCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

wize
proton affinity
electron affinity
0,14462 eV/particle
ionization energy
5,211664 eV/particle
ionization energy of Ba (Baryûm)
enthalpy of vaporization
142 kJ/mol
enthalpy of fusion
7,66 kJ/mol
standard enthalpy of formation
179,1 kJ/mol
Kareva
electron shell2, 8, 18, 18, 8, 2
Bohr model: Ba (Baryûm)
valence electron2
Lewis structure: Ba (Baryûm)
electron configuration[Xe] 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2
Enhanced Bohr model of Ba (Baryûm)
Orbital Diagram of Ba (Baryûm)
oxidation number1, 2
electronegativity
0.89
Electrophilicity Index
0,7077543210759566 eV/particle
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
2.118,15 K
Melting Point
1.000,15 K
critical pressure
critical temperature
triple point
appearance
color
Silver
appearance
refractive index
thermodynamic material property
Thermal Conductivity
thermal expansion
0,0000206 1/K
molar heat capacity
28,07 J/(mol K)
Specific Heat Capacity
0,204 J/(g⋅K)
heat capacity ratio
electrical properties
typeConductor
electrical conductivity
2,9 MS/m
electrical resistivity
0,00000035 m Ω
superconductivity
magnetism
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000113 m³/Kg
magnetic susceptibility (Molar)
0,000000001552 m³/mol
magnetic susceptibility (Volume)
0,00003966
magnetic ordering
Germahiya Curie
Néel temperature
pêkhate
Crystal StructureBody Centered Cubic (BCC)
lattice constant
5,02 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
hardness
1,25 MPa
bulk modulus
9,6 GPa
shear modulus
4,9 GPa
Young's modulus
13 GPa
Poisson's ratio
Leza dengê
1.620 m/s
classification
CategoryAlkaline earth metals, Alkaline earth metals
CAS GroupIIA
IUPAC GroupIIA
Glawe Number14
Mendeleev Number9
Pettifor Number14
Geochemical Classalkaline earth metal
Goldschmidt classificationlitophile

other

Gas Basicity
polarizability
272 ± 10 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
1,3
Neutron Mass Absorption
0,00027
quantum number1S0
space group229 (Im_3m)

Isotopes of Barium

Stable Isotopes5
Unstable Isotopes37
Natural Isotopes7
Isotopic Composition13871.70%13871.70%13711.23%13711.23%1367.85%1367.85%1356.59%1356.59%1342.42%1342.42%1300.11%1300.11%1320.10%1320.10%

113Ba

Hejmara baristeyî113
neutron number57
Giraniya atomê
112,95737 ± 0,000322 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê
parity+

decay modeintensity
p (proton emission)
α (α emission)

114Ba

Hejmara baristeyî114
neutron number58
Giraniya atomê
113,950718489 ± 0,000110227 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
460 ± 125 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1995
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)20%
α (α emission)0.9%
12C0.0034%

115Ba

Hejmara baristeyî115
neutron number59
Giraniya atomê
114,947482 ± 0,000215 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
450 ± 50 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1997
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)15%

116Ba

Hejmara baristeyî116
neutron number60
Giraniya atomê
115,941621 ± 0,000215 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,3 ± 0,2 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1997
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)3%

117Ba

Hejmara baristeyî117
neutron number61
Giraniya atomê
116,938316403 ± 0,000268749 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
1,75 ± 0,07 s
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1977
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)13%
β+α (β+-delayed α emission)0.024%

118Ba

Hejmara baristeyî118
neutron number62
Giraniya atomê
117,933226 ± 0,000215 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
5,2 ± 0,2 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1997
parity+

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

119Ba

Hejmara baristeyî119
neutron number63
Giraniya atomê
118,930659683 ± 0,000214997 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
5,4 ± 0,3 s
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1974
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)25%

120Ba

Hejmara baristeyî120
neutron number64
Giraniya atomê
119,926044997 ± 0,000322241 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
24 ± 2 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1974
parity+

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

121Ba

Hejmara baristeyî121
neutron number65
Giraniya atomê
120,924052286 ± 0,000152333 Da
g-factor
0,264 ± 0,0004
natural abundance
radioactivity☢️ radioactive element
half-life
29,7 ± 1,5 s
spin5/2
nuclear quadrupole moment
1,89 ± 0,13
dema îcadkirinê yan keşfê1975
parity+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.02%

122Ba

Hejmara baristeyî122
neutron number66
Giraniya atomê
121,919904 ± 0,00003 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
1,95 ± 0,15 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1974
parity+

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

123Ba

Hejmara baristeyî123
neutron number67
Giraniya atomê
122,91878106 ± 0,000013 Da
g-factor
-0,272 ± 0,0004
natural abundance
radioactivity☢️ radioactive element
half-life
2,7 ± 0,4 m
spin5/2
nuclear quadrupole moment
1,57 ± 0,13
dema îcadkirinê yan keşfê1962
parity+

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

124Ba

Hejmara baristeyî124
neutron number68
Giraniya atomê
123,915093627 ± 0,000013416 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
11 ± 0,5 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

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

125Ba

Hejmara baristeyî125
neutron number69
Giraniya atomê
124,91447184 ± 0,0000118 Da
g-factor
0,354 ± 0,024
natural abundance
radioactivity☢️ radioactive element
half-life
3,3 ± 0,3 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1968
parity+

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

126Ba

Hejmara baristeyî126
neutron number70
Giraniya atomê
125,911250202 ± 0,000013416 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
100 ± 2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1954
parity+

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

127Ba

Hejmara baristeyî127
neutron number71
Giraniya atomê
126,911091272 ± 0,000012192 Da
g-factor
0,1668 ± 0,002
natural abundance
radioactivity☢️ radioactive element
half-life
12,7 ± 0,4 m
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1952
parity+

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

128Ba

Hejmara baristeyî128
neutron number72
Giraniya atomê
127,908352446 ± 0,000001728 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,43 ± 0,05 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1950
parity+

decay modeintensity
ϵ (electron capture)100%

129Ba

Hejmara baristeyî129
neutron number73
Giraniya atomê
128,908683409 ± 0,000011276 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
2,23 ± 0,11 h
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1950
parity+

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

130Ba

Hejmara baristeyî130
neutron number74
Giraniya atomê
129,906326002 ± 0,000000308 Da
g-factor
0
natural abundance
0,11 ± 0,01
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1936
parity+

decay modeintensity
+ (double β+ decay)

131Ba

Hejmara baristeyî131
neutron number75
Giraniya atomê
130,906946315 ± 0,000000445 Da
g-factor
1,4166 ± 0,0004
natural abundance
radioactivity☢️ radioactive element
half-life
11,52 ± 0,01 d
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1947
parity+

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

132Ba

Hejmara baristeyî132
neutron number76
Giraniya atomê
131,905061231 ± 0,00000113 Da
g-factor
0
natural abundance
0,1 ± 0,01
radioactivity☢️ radioactive element
half-life
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1936
parity+

decay modeintensity
+ (double β+ decay)

133Ba

Hejmara baristeyî133
neutron number77
Giraniya atomê
132,906007443 ± 0,000001065 Da
g-factor
1,5438 ± 0,0004
natural abundance
radioactivity☢️ radioactive element
half-life
10,5379 ± 0,0016 y
spin1/2
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1941
parity+

decay modeintensity
ϵ (electron capture)100%

134Ba

Hejmara baristeyî134
neutron number78
Giraniya atomê
133,904508249 ± 0,000000269 Da
g-factor
0
natural abundance
2,42 ± 0,15
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1936
parity+

135Ba

Hejmara baristeyî135
neutron number79
Giraniya atomê
134,905688447 ± 0,000000263 Da
g-factor
0,55873333333333 ± 0,00013333333333333
natural abundance
6,59 ± 0,1
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,153 ± 0,002
dema îcadkirinê yan keşfê1932
parity+

136Ba

Hejmara baristeyî136
neutron number80
Giraniya atomê
135,9045758 ± 0,000000262 Da
g-factor
0
natural abundance
7,85 ± 0,24
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1932
parity+

137Ba

Hejmara baristeyî137
neutron number81
Giraniya atomê
136,905827207 ± 0,000000266 Da
g-factor
0,625 ± 0,00013333333333333
natural abundance
11,23 ± 0,23
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,236 ± 0,003
dema îcadkirinê yan keşfê1932
parity+

138Ba

Hejmara baristeyî138
neutron number82
Giraniya atomê
137,905247059 ± 0,000000267 Da
g-factor
0
natural abundance
71,7 ± 0,29
radioactivitystable isotope
half-lifeNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1925
parity+

139Ba

Hejmara baristeyî139
neutron number83
Giraniya atomê
138,908841164 ± 0,000000271 Da
g-factor
-0,278 ± 0,0014285714285714
natural abundance
radioactivity☢️ radioactive element
half-life
82,93 ± 0,09 m
spin7/2
nuclear quadrupole moment
-0,552 ± 0,013
dema îcadkirinê yan keşfê1937
parity-

decay modeintensity
β (β decay)100%

140Ba

Hejmara baristeyî140
neutron number84
Giraniya atomê
139,910608231 ± 0,00000848 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
12,7534 ± 0,0021 d
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1939
parity+

decay modeintensity
β (β decay)100%

141Ba

Hejmara baristeyî141
neutron number85
Giraniya atomê
140,914403653 ± 0,000005709 Da
g-factor
-0,22466666666667 ± 0,0033333333333333
natural abundance
radioactivity☢️ radioactive element
half-life
18,27 ± 0,07 m
spin3/2
nuclear quadrupole moment
0,437 ± 0,01
dema îcadkirinê yan keşfê1945
parity-

decay modeintensity
β (β decay)100%

142Ba

Hejmara baristeyî142
neutron number86
Giraniya atomê
141,916432904 ± 0,000006355 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
10,6 ± 0,2 m
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1959
parity+

decay modeintensity
β (β decay)100%

143Ba

Hejmara baristeyî143
neutron number87
Giraniya atomê
142,920625149 ± 0,000007253 Da
g-factor
0,1772 ± 0,0044
natural abundance
radioactivity☢️ radioactive element
half-life
14,5 ± 0,3 s
spin5/2
nuclear quadrupole moment
-0,85 ± 0,02
dema îcadkirinê yan keşfê1962
parity-

decay modeintensity
β (β decay)100%

144Ba

Hejmara baristeyî144
neutron number88
Giraniya atomê
143,922954821 ± 0,000007661 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
11,73 ± 0,08 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1967
parity+

decay modeintensity
β (β decay)100%

145Ba

Hejmara baristeyî145
neutron number89
Giraniya atomê
144,9275184 ± 0,0000091 Da
g-factor
-0,114 ± 0,0028
natural abundance
radioactivity☢️ radioactive element
half-life
4,31 ± 0,16 s
spin5/2
nuclear quadrupole moment
1,18 ± 0,02
dema îcadkirinê yan keşfê1974
parity-

decay modeintensity
β (β decay)100%

146Ba

Hejmara baristeyî146
neutron number90
Giraniya atomê
145,9303632 ± 0,0000019 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
2,15 ± 0,04 s
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1970
parity+

decay modeintensity
β (β decay)100%

147Ba

Hejmara baristeyî147
neutron number91
Giraniya atomê
146,9353039 ± 0,0000212 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
893 ± 1 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1978
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.07%

148Ba

Hejmara baristeyî148
neutron number92
Giraniya atomê
147,938223 ± 0,0000016 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
620 ± 5 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1979
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.4%

149Ba

Hejmara baristeyî149
neutron number93
Giraniya atomê
148,943284 ± 0,0000027 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
349 ± 4 ms
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1993
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)3.9%

150Ba

Hejmara baristeyî150
neutron number94
Giraniya atomê
149,9464411 ± 0,0000061 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
258 ± 5 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê1994
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1%

151Ba

Hejmara baristeyî151
neutron number95
Giraniya atomê
150,951755 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
167 ± 5 ms
spin3/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê1994
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

152Ba

Hejmara baristeyî152
neutron number96
Giraniya atomê
151,95533 ± 0,000429 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
139 ± 8 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2010
parity+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)

153Ba

Hejmara baristeyî153
neutron number97
Giraniya atomê
152,960848 ± 0,000429 Da
g-factor
natural abundance
radioactivity☢️ radioactive element
half-life
113 ± 39 ms
spin5/2
nuclear quadrupole moment
dema îcadkirinê yan keşfê2016
parity-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)
2n (2-neutron emission)

154Ba

Hejmara baristeyî154
neutron number98
Giraniya atomê
153,964659 ± 0,000537 Da
g-factor
0
natural abundance
radioactivity☢️ radioactive element
half-life
53 ± 48 ms
spin0
nuclear quadrupole moment
0
dema îcadkirinê yan keşfê2017
parity+

decay modeintensity
β (β decay)100%
Barium 1

dîrok

kaşîf an îcadkerSir Humphrey Davy
location of discoveryEngland
dema îcadkirinê yan keşfê1808
BêjenasîGreek: barys (heavy or dense).
pronunciationBAR-i-em (îngilîzî)

source

Abundance
Abundance in Earth's crust
425 mg/kg
natural abundance (Okyanûs)
0,013 mg/L
natural abundance (human body)
0,00003 %
natural abundance (meteoroid)
0,00027 %
natural abundance (Roj)
0,000001 %
Abundance in Universe
0,000001 %

Nuclear Screening Constants

1s1.1139
2p4.1904
2s14.7532
3d13.9757
3p18.6836
3s18.8444
4d32.216
4p29.1968
4s28.08
5p41.1995
5s39.3805
6s48.425