Barij[um]

Barij[um] (Ba)

hemijski element sa simbolom Ba i atomskim brojem 56
Atomic Number56
Atomic Weight137.327
Maseni broj138
Group2
Period6
Blocks
Proton56 p+
Neutron82 n0
Elektron56 e-
Animated Bohrov model atoma of Ba (Barij[um])

Physical Property

Atomski Radijus
215 pm
Molarni volumen
covalent radius
196 pm
Metallic Radius
198 pm
Ionski radijus
135 pm
Crystal Radius
149 pm
Van der Waalsov radijus
268 pm
gustoća
3,62 g/cm³
Atomic Radii Of The Elements: Barij[um]0102030405060708090100110120130140150160170180190200210220230240250260270pmAtomski RadijusCovalent RadiusMetallic RadiusVan der Waalsov radijus

Chemical Property

energija
proton affinity
electron affinity
0,14462 eV/particle
ionization energy
5,211664 eV/particle
ionization energy of Ba (Barij[um])
Toplota isparavanja
142 kJ/mol
toplota topljenja
7,66 kJ/mol
standard enthalpy of formation
179,1 kJ/mol
Elektron
electron shell2, 8, 18, 18, 8, 2
Bohrov model atoma: Ba (Barij[um])
Valentni elektron2
Lewis structure: Ba (Barij[um])
electron configuration[Xe] 6s2
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2
Enhanced Bohrov model atoma of Ba (Barij[um])
Orbital Diagram of Ba (Barij[um])
oksidacijsko stanje1, 2
Elektronegativnost
0.89
Electrophilicity Index
0,7077543210759566 eV/particle
fundamental state of matter
agregatno stanjeSolid
gaseous state of matter
Boiling Point
2.118,15 K
Melting Point
1.000,15 K
critical pressure
Kritična temperatura
Trojna tačka
appearance
boja
Silver
appearance
Indeks prelamanja
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
Specifična električna provodljivost
2,9 MS/m
electrical resistivity
0,00000035 m Ω
Superprovodljivost
Magnetizam
typeparamagnetic
magnetic susceptibility (Mass)
0,0000000113 m³/Kg
magnetic susceptibility (Molar)
0,000000001552 m³/mol
magnetic susceptibility (Volume)
0,00003966
magnetic ordering
Kirijeva tačka
Néel temperature
struktura
Crystal StructureBody Centered Cubic (BCC)
lattice constant
5,02 Å
Lattice Anglesπ/2, π/2, π/2
mechanical property
Tvrdoća
1,25 MPa
bulk modulus
9,6 GPa
shear modulus
4,9 GPa
Young's modulus
13 GPa
Poisson's ratio
Brzina zvuka
1.620 m/s
klasifikacija
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
Kvantni brojevi1S0
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

Maseni broj113
broj neutrona57
relative atomic mass
112,95737 ± 0,000322 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin5/2
nuclear quadrupole moment
datum otkrića
parity+

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

114Ba

Maseni broj114
broj neutrona58
relative atomic mass
113,950718489 ± 0,000110227 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
460 ± 125 ms
spin0
nuclear quadrupole moment
0
datum otkrića1995
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

Maseni broj115
broj neutrona59
relative atomic mass
114,947482 ± 0,000215 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
450 ± 50 ms
spin5/2
nuclear quadrupole moment
datum otkrića1997
parity+

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

116Ba

Maseni broj116
broj neutrona60
relative atomic mass
115,941621 ± 0,000215 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,3 ± 0,2 s
spin0
nuclear quadrupole moment
0
datum otkrića1997
parity+

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

117Ba

Maseni broj117
broj neutrona61
relative atomic mass
116,938316403 ± 0,000268749 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,75 ± 0,07 s
spin3/2
nuclear quadrupole moment
datum otkrića1977
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

Maseni broj118
broj neutrona62
relative atomic mass
117,933226 ± 0,000215 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,2 ± 0,2 s
spin0
nuclear quadrupole moment
0
datum otkrića1997
parity+

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

119Ba

Maseni broj119
broj neutrona63
relative atomic mass
118,930659683 ± 0,000214997 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
5,4 ± 0,3 s
spin5/2
nuclear quadrupole moment
datum otkrića1974
parity+

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

120Ba

Maseni broj120
broj neutrona64
relative atomic mass
119,926044997 ± 0,000322241 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
24 ± 2 s
spin0
nuclear quadrupole moment
0
datum otkrića1974
parity+

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

121Ba

Maseni broj121
broj neutrona65
relative atomic mass
120,924052286 ± 0,000152333 Da
g-factor
0,264 ± 0,0004
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
29,7 ± 1,5 s
spin5/2
nuclear quadrupole moment
1,89 ± 0,13
datum otkrića1975
parity+

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

122Ba

Maseni broj122
broj neutrona66
relative atomic mass
121,919904 ± 0,00003 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
1,95 ± 0,15 m
spin0
nuclear quadrupole moment
0
datum otkrića1974
parity+

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

123Ba

Maseni broj123
broj neutrona67
relative atomic mass
122,91878106 ± 0,000013 Da
g-factor
-0,272 ± 0,0004
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,7 ± 0,4 m
spin5/2
nuclear quadrupole moment
1,57 ± 0,13
datum otkrića1962
parity+

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

124Ba

Maseni broj124
broj neutrona68
relative atomic mass
123,915093627 ± 0,000013416 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11 ± 0,5 m
spin0
nuclear quadrupole moment
0
datum otkrića1967
parity+

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

125Ba

Maseni broj125
broj neutrona69
relative atomic mass
124,91447184 ± 0,0000118 Da
g-factor
0,354 ± 0,024
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
3,3 ± 0,3 m
spin1/2
nuclear quadrupole moment
0
datum otkrića1968
parity+

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

126Ba

Maseni broj126
broj neutrona70
relative atomic mass
125,911250202 ± 0,000013416 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
100 ± 2 m
spin0
nuclear quadrupole moment
0
datum otkrića1954
parity+

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

127Ba

Maseni broj127
broj neutrona71
relative atomic mass
126,911091272 ± 0,000012192 Da
g-factor
0,1668 ± 0,002
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,7 ± 0,4 m
spin1/2
nuclear quadrupole moment
0
datum otkrića1952
parity+

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

128Ba

Maseni broj128
broj neutrona72
relative atomic mass
127,908352446 ± 0,000001728 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,43 ± 0,05 d
spin0
nuclear quadrupole moment
0
datum otkrića1950
parity+

decay modeintensity
ϵ (electron capture)100%

129Ba

Maseni broj129
broj neutrona73
relative atomic mass
128,908683409 ± 0,000011276 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,23 ± 0,11 h
spin1/2
nuclear quadrupole moment
0
datum otkrića1950
parity+

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

130Ba

Maseni broj130
broj neutrona74
relative atomic mass
129,906326002 ± 0,000000308 Da
g-factor
0
natural abundance
0,11 ± 0,01
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1936
parity+

decay modeintensity
+ (double β+ decay)

131Ba

Maseni broj131
broj neutrona75
relative atomic mass
130,906946315 ± 0,000000445 Da
g-factor
1,4166 ± 0,0004
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,52 ± 0,01 d
spin1/2
nuclear quadrupole moment
0
datum otkrića1947
parity+

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

132Ba

Maseni broj132
broj neutrona76
relative atomic mass
131,905061231 ± 0,00000113 Da
g-factor
0
natural abundance
0,1 ± 0,01
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
spin0
nuclear quadrupole moment
0
datum otkrića1936
parity+

decay modeintensity
+ (double β+ decay)

133Ba

Maseni broj133
broj neutrona77
relative atomic mass
132,906007443 ± 0,000001065 Da
g-factor
1,5438 ± 0,0004
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,5379 ± 0,0016 y
spin1/2
nuclear quadrupole moment
0
datum otkrića1941
parity+

decay modeintensity
ϵ (electron capture)100%

134Ba

Maseni broj134
broj neutrona78
relative atomic mass
133,904508249 ± 0,000000269 Da
g-factor
0
natural abundance
2,42 ± 0,15
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
datum otkrića1936
parity+

135Ba

Maseni broj135
broj neutrona79
relative atomic mass
134,905688447 ± 0,000000263 Da
g-factor
0,55873333333333 ± 0,00013333333333333
natural abundance
6,59 ± 0,1
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,153 ± 0,002
datum otkrića1932
parity+

136Ba

Maseni broj136
broj neutrona80
relative atomic mass
135,9045758 ± 0,000000262 Da
g-factor
0
natural abundance
7,85 ± 0,24
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
datum otkrića1932
parity+

137Ba

Maseni broj137
broj neutrona81
relative atomic mass
136,905827207 ± 0,000000266 Da
g-factor
0,625 ± 0,00013333333333333
natural abundance
11,23 ± 0,23
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin3/2
nuclear quadrupole moment
0,236 ± 0,003
datum otkrića1932
parity+

138Ba

Maseni broj138
broj neutrona82
relative atomic mass
137,905247059 ± 0,000000267 Da
g-factor
0
natural abundance
71,7 ± 0,29
Radioaktivnoststable isotope
Vrijeme poluraspadaNot Radioactive ☢️
spin0
nuclear quadrupole moment
0
datum otkrića1925
parity+

139Ba

Maseni broj139
broj neutrona83
relative atomic mass
138,908841164 ± 0,000000271 Da
g-factor
-0,278 ± 0,0014285714285714
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
82,93 ± 0,09 m
spin7/2
nuclear quadrupole moment
-0,552 ± 0,013
datum otkrića1937
parity-

decay modeintensity
β (β decay)100%

140Ba

Maseni broj140
broj neutrona84
relative atomic mass
139,910608231 ± 0,00000848 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
12,7534 ± 0,0021 d
spin0
nuclear quadrupole moment
0
datum otkrića1939
parity+

decay modeintensity
β (β decay)100%

141Ba

Maseni broj141
broj neutrona85
relative atomic mass
140,914403653 ± 0,000005709 Da
g-factor
-0,22466666666667 ± 0,0033333333333333
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
18,27 ± 0,07 m
spin3/2
nuclear quadrupole moment
0,437 ± 0,01
datum otkrića1945
parity-

decay modeintensity
β (β decay)100%

142Ba

Maseni broj142
broj neutrona86
relative atomic mass
141,916432904 ± 0,000006355 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
10,6 ± 0,2 m
spin0
nuclear quadrupole moment
0
datum otkrića1959
parity+

decay modeintensity
β (β decay)100%

143Ba

Maseni broj143
broj neutrona87
relative atomic mass
142,920625149 ± 0,000007253 Da
g-factor
0,1772 ± 0,0044
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
14,5 ± 0,3 s
spin5/2
nuclear quadrupole moment
-0,85 ± 0,02
datum otkrića1962
parity-

decay modeintensity
β (β decay)100%

144Ba

Maseni broj144
broj neutrona88
relative atomic mass
143,922954821 ± 0,000007661 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
11,73 ± 0,08 s
spin0
nuclear quadrupole moment
0
datum otkrića1967
parity+

decay modeintensity
β (β decay)100%

145Ba

Maseni broj145
broj neutrona89
relative atomic mass
144,9275184 ± 0,0000091 Da
g-factor
-0,114 ± 0,0028
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
4,31 ± 0,16 s
spin5/2
nuclear quadrupole moment
1,18 ± 0,02
datum otkrića1974
parity-

decay modeintensity
β (β decay)100%

146Ba

Maseni broj146
broj neutrona90
relative atomic mass
145,9303632 ± 0,0000019 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
2,15 ± 0,04 s
spin0
nuclear quadrupole moment
0
datum otkrića1970
parity+

decay modeintensity
β (β decay)100%

147Ba

Maseni broj147
broj neutrona91
relative atomic mass
146,9353039 ± 0,0000212 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
893 ± 1 ms
spin5/2
nuclear quadrupole moment
datum otkrića1978
parity-

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

148Ba

Maseni broj148
broj neutrona92
relative atomic mass
147,938223 ± 0,0000016 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
620 ± 5 ms
spin0
nuclear quadrupole moment
0
datum otkrića1979
parity+

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

149Ba

Maseni broj149
broj neutrona93
relative atomic mass
148,943284 ± 0,0000027 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
349 ± 4 ms
spin3/2
nuclear quadrupole moment
datum otkrića1993
parity-

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

150Ba

Maseni broj150
broj neutrona94
relative atomic mass
149,9464411 ± 0,0000061 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
258 ± 5 ms
spin0
nuclear quadrupole moment
0
datum otkrića1994
parity+

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

151Ba

Maseni broj151
broj neutrona95
relative atomic mass
150,951755 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
167 ± 5 ms
spin3/2
nuclear quadrupole moment
datum otkrića1994
parity-

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

152Ba

Maseni broj152
broj neutrona96
relative atomic mass
151,95533 ± 0,000429 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
139 ± 8 ms
spin0
nuclear quadrupole moment
0
datum otkrića2010
parity+

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

153Ba

Maseni broj153
broj neutrona97
relative atomic mass
152,960848 ± 0,000429 Da
g-factor
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
113 ± 39 ms
spin5/2
nuclear quadrupole moment
datum otkrića2016
parity-

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

154Ba

Maseni broj154
broj neutrona98
relative atomic mass
153,964659 ± 0,000537 Da
g-factor
0
natural abundance
Radioaktivnost☢️ radioactive element
Vrijeme poluraspada
53 ± 48 ms
spin0
nuclear quadrupole moment
0
datum otkrića2017
parity+

decay modeintensity
β (β decay)100%
Barium 1

historija

otkrivač ili izumiteljSir Humphrey Davy
mjesto otkrićaEngland
datum otkrića1808
EtimologijaGreek: barys (heavy or dense).
pronunciationBAR-i-em (engleski)

izvor

Abundance
Abundance in Earth's crust
425 mg/kg
natural abundance (okean)
0,013 mg/L
natural abundance (ljudsko tijelo)
0,00003 %
natural abundance (Meteoroidi)
0,00027 %
natural abundance (Sunce)
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