Barium (Ba)

chemical element with symbol Ba and atomic number 56

Atomic Number	56
Atomic Weight	137.327
Nombor jisim	138

Group	2
Period	6
Block	s

proton	56 p⁺
neutron	82 n⁰
Elektron	56 e^-

Sifat Fizikal

Jejari Atom	215 pm 293 pm
molar volume	39 cm³/mol
Jejari kovalen	196 pm 161 pm 149 pm 210 pm 215 pm
Metallic Radius	198 pm 222 pm
ionic radius	135 pm 138 pm 142 pm 147 pm 152 pm 157 pm 161 pm
Crystal Radius	149 pm 152 pm 156 pm 161 pm 166 pm 171 pm 175 pm
Jejari van der Waals	270 pm 268 pm 307 pm 268 pm 370.3 pm
ketumpatan	3.62 g/cm³ 3,338 kg/m³

Sifat Kimia

{ERROR}

tenaga

proton affinity
Pertalian elektron	0.14462 eV/particle
ionization energy	5.211664 eV/particle 10.003826 eV/particle 35.84 eV/particle 47.03 eV/particle 58 eV/particle 71 eV/particle 86 eV/particle 101 eV/particle 130.53 eV/particle 146.52 eV/particle 241 eV/particle 267.1 eV/particle 296 eV/particle 325 eV/particle 354 eV/particle 390 eV/particle 422 eV/particle 455 eV/particle 488 eV/particle 520 eV/particle 646 eV/particle 679 eV/particle 717 eV/particle 752 eV/particle 809 eV/particle 846 eV/particle 935 eV/particle 976.6 eV/particle 1,695 eV/particle 1,776 eV/particle 1,864 eV/particle 1,958 eV/particle 2,047 eV/particle 2,142 eV/particle 2,256 eV/particle 2,349 eV/particle 2,452 eV/particle 2,547 eV/particle 2,814 eV/particle 2,901 eV/particle 2,994 eV/particle 3,081 eV/particle 3,266 eV/particle 3,363 eV/particle 3,550 eV/particle 3,640 eV/particle 8,326 eV/particle 8,565 eV/particle 8,831 eV/particle 9,077 eV/particle 9,739 eV/particle 10,023 eV/particle 10,376 eV/particle 10,616.42 eV/particle 43,485.364 eV/particle 44,561.47 eV/particle

Entalpi pengewapan	142 kJ/mol
entalpi pelakuran	7.66 kJ/mol
standard enthalpy of formation	179.1 kJ/mol
Elektron

Petala elektron	2, 8, 18, 18, 8, 2

Elektron valens	2 ⓘ

tatarajah elektron	[Xe] 6s²ⓘ 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s²

Keadaan pengoksidaan	1, 2
Keelektronegatifan	5.211 eV/particle 0.1586786 0.89
Electrophilicity Index	0.7077543210759566 eV/particle
keadaan jirim asas

fasa jirim
gaseous state of matter
Boiling Point	2,118.15 K
Melting Point	1,000.15 K
critical pressure
critical temperature
triple point
rupa
warna	Black #ffa500 #00c900 #00c900
rupa
indeks biasan
sifat bahan
Thermal Conductivity
Pengembangan terma	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
type	Conductor
Kekonduksian elektrik	2.9 MS/m
Kerintangan dan kekonduksian elektrik	0.00000035 Ω*m
Kesuperkonduksian
kemagnetan
type	paramagnetic
magnetic susceptibility (Mass)	0.0000000113 m³/Kg
magnetic susceptibility (Molar)	0.000000001552 m³/mol
magnetic susceptibility (Volume)	0.00003966
magnetic ordering
Suhu Curie
Néel temperature
struktur
Crystal Structure	{ERROR}
lattice constant	5.02 Å
Lattice Angles	π/2, π/2, π/2
mechanical property
hardness	1.25 MPa
Modulus pukal	9.6 GPa
shear modulus	4.9 GPa
Young's modulus	13 GPa
Nisbah Poisson
Kelajuan bunyi	1,620 m/s
pengelasan
Category	Actinides, Alkaline earth metals
CAS Group	IIA
IUPAC Group	IIA
Glawe Number	14
Mendeleev Number	9
Pettifor Number	14
Geochemical Class	alkaline earth metal
Goldschmidt classification	litophile

other

Gas Basicity
polarizability	272 ± 10 a₀
C6 Dispersion Coefficient	5,540 a₀
allotrope
Neutron cross section	1.3
Neutron Mass Absorption	0.00027
Nombor kuantum	1S0
space group	229 (Im_3m)

Isotopes of Barium

Stable Isotopes	5
Unstable Isotopes	37
Natural Isotopes	7

¹¹³Ba

Nombor jisim	113
nombor neutron	57
Jisim Atom Relatif	112.95737 ± 0.000322 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	5/2
nuclear quadrupole moment
tarikh penemuan
parity	+

decay mode	Keamatan (fizik)
p (proton emission)
α (α emission)

¹¹⁴Ba

Nombor jisim	114
nombor neutron	58
Jisim Atom Relatif	113.950718489 ± 0.000110227 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	460 ± 125 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1995
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%
β⁺ p (β⁺-delayed proton emission)	20%
α (α emission)	0.9%
12C	0.0034%

¹¹⁵Ba

Nombor jisim	115
nombor neutron	59
Jisim Atom Relatif	114.947482 ± 0.000215 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	450 ± 50 ms
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1997
parity	+

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

¹¹⁶Ba

Nombor jisim	116
nombor neutron	60
Jisim Atom Relatif	115.941621 ± 0.000215 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	1.3 ± 0.2 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1997
parity	+

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

¹¹⁷Ba

Nombor jisim	117
nombor neutron	61
Jisim Atom Relatif	116.938316403 ± 0.000268749 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	1.75 ± 0.07 s
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	1977
parity	+

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

¹¹⁸Ba

Nombor jisim	118
nombor neutron	62
Jisim Atom Relatif	117.933226 ± 0.000215 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	5.2 ± 0.2 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1997
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹¹⁹Ba

Nombor jisim	119
nombor neutron	63
Jisim Atom Relatif	118.930659683 ± 0.000214997 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	5.4 ± 0.3 s
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1974
parity	+

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

¹²⁰Ba

Nombor jisim	120
nombor neutron	64
Jisim Atom Relatif	119.926044997 ± 0.000322241 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	24 ± 2 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1974
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²¹Ba

Nombor jisim	121
nombor neutron	65
Jisim Atom Relatif	120.924052286 ± 0.000152333 Da
g-factor	0.264 ± 0.0004
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	29.7 ± 1.5 s
Spin	5/2
nuclear quadrupole moment	1.89 ± 0.13
tarikh penemuan	1975
parity	+

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

¹²²Ba

Nombor jisim	122
nombor neutron	66
Jisim Atom Relatif	121.919904 ± 0.00003 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	1.95 ± 0.15 m
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1974
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²³Ba

Nombor jisim	123
nombor neutron	67
Jisim Atom Relatif	122.91878106 ± 0.000013 Da
g-factor	-0.272 ± 0.0004
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.7 ± 0.4 m
Spin	5/2
nuclear quadrupole moment	1.57 ± 0.13
tarikh penemuan	1962
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁴Ba

Nombor jisim	124
nombor neutron	68
Jisim Atom Relatif	123.915093627 ± 0.000013416 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	11 ± 0.5 m
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1967
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁵Ba

Nombor jisim	125
nombor neutron	69
Jisim Atom Relatif	124.91447184 ± 0.0000118 Da
g-factor	0.354 ± 0.024
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	3.3 ± 0.3 m
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1968
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁶Ba

Nombor jisim	126
nombor neutron	70
Jisim Atom Relatif	125.911250202 ± 0.000013416 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	100 ± 2 m
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1954
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁷Ba

Nombor jisim	127
nombor neutron	71
Jisim Atom Relatif	126.911091272 ± 0.000012192 Da
g-factor	0.1668 ± 0.002
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	12.7 ± 0.4 m
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1952
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹²⁸Ba

Nombor jisim	128
nombor neutron	72
Jisim Atom Relatif	127.908352446 ± 0.000001728 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.43 ± 0.05 d
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1950
parity	+

decay mode	Keamatan (fizik)
ϵ (electron capture)	100%

¹²⁹Ba

Nombor jisim	129
nombor neutron	73
Jisim Atom Relatif	128.908683409 ± 0.000011276 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.23 ± 0.11 h
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1950
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³⁰Ba

Nombor jisim	130
nombor neutron	74
Jisim Atom Relatif	129.906326002 ± 0.000000308 Da
g-factor	0
natural abundance	0.11 ± 0.01
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1936
parity	+

decay mode	Keamatan (fizik)
2β⁺ (double β⁺ decay)

¹³¹Ba

Nombor jisim	131
nombor neutron	75
Jisim Atom Relatif	130.906946315 ± 0.000000445 Da
g-factor	1.4166 ± 0.0004
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	11.52 ± 0.01 d
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1947
parity	+

decay mode	Keamatan (fizik)
β⁺ (β⁺ decay; β⁺ = ϵ + e⁺)	100%

¹³²Ba

Nombor jisim	132
nombor neutron	76
Jisim Atom Relatif	131.905061231 ± 0.00000113 Da
g-factor	0
natural abundance	0.1 ± 0.01
Reputan radioaktif	☢️ radioactive element
setengah hayat
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1936
parity	+

decay mode	Keamatan (fizik)
2β⁺ (double β⁺ decay)

¹³³Ba

Nombor jisim	133
nombor neutron	77
Jisim Atom Relatif	132.906007443 ± 0.000001065 Da
g-factor	1.5438 ± 0.0004
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	10.5379 ± 0.0016 y
Spin	1/2
nuclear quadrupole moment	0
tarikh penemuan	1941
parity	+

decay mode	Keamatan (fizik)
ϵ (electron capture)	100%

¹³⁴Ba

Nombor jisim	134
nombor neutron	78
Jisim Atom Relatif	133.904508249 ± 0.000000269 Da
g-factor	0
natural abundance	2.42 ± 0.15
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1936
parity	+

¹³⁵Ba

Nombor jisim	135
nombor neutron	79
Jisim Atom Relatif	134.905688447 ± 0.000000263 Da
g-factor	0.55873333333333 ± 0.00013333333333333
natural abundance	6.59 ± 0.1
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	3/2
nuclear quadrupole moment	0.153 ± 0.002
tarikh penemuan	1932
parity	+

¹³⁶Ba

Nombor jisim	136
nombor neutron	80
Jisim Atom Relatif	135.9045758 ± 0.000000262 Da
g-factor	0
natural abundance	7.85 ± 0.24
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1932
parity	+

¹³⁷Ba

Nombor jisim	137
nombor neutron	81
Jisim Atom Relatif	136.905827207 ± 0.000000266 Da
g-factor	0.625 ± 0.00013333333333333
natural abundance	11.23 ± 0.23
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	3/2
nuclear quadrupole moment	0.236 ± 0.003
tarikh penemuan	1932
parity	+

¹³⁸Ba

Nombor jisim	138
nombor neutron	82
Jisim Atom Relatif	137.905247059 ± 0.000000267 Da
g-factor	0
natural abundance	71.7 ± 0.29
Reputan radioaktif	Isotop stabil
setengah hayat	Not Radioactive ☢️
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1925
parity	+

¹³⁹Ba

Nombor jisim	139
nombor neutron	83
Jisim Atom Relatif	138.908841164 ± 0.000000271 Da
g-factor	-0.278 ± 0.0014285714285714
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	82.93 ± 0.09 m
Spin	7/2
nuclear quadrupole moment	-0.552 ± 0.013
tarikh penemuan	1937
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴⁰Ba

Nombor jisim	140
nombor neutron	84
Jisim Atom Relatif	139.910608231 ± 0.00000848 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	12.7534 ± 0.0021 d
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1939
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴¹Ba

Nombor jisim	141
nombor neutron	85
Jisim Atom Relatif	140.914403653 ± 0.000005709 Da
g-factor	-0.22466666666667 ± 0.0033333333333333
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	18.27 ± 0.07 m
Spin	3/2
nuclear quadrupole moment	0.437 ± 0.01
tarikh penemuan	1945
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴²Ba

Nombor jisim	142
nombor neutron	86
Jisim Atom Relatif	141.916432904 ± 0.000006355 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	10.6 ± 0.2 m
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1959
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴³Ba

Nombor jisim	143
nombor neutron	87
Jisim Atom Relatif	142.920625149 ± 0.000007253 Da
g-factor	0.1772 ± 0.0044
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	14.5 ± 0.3 s
Spin	5/2
nuclear quadrupole moment	-0.85 ± 0.02
tarikh penemuan	1962
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴⁴Ba

Nombor jisim	144
nombor neutron	88
Jisim Atom Relatif	143.922954821 ± 0.000007661 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	11.73 ± 0.08 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1967
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴⁵Ba

Nombor jisim	145
nombor neutron	89
Jisim Atom Relatif	144.9275184 ± 0.0000091 Da
g-factor	-0.114 ± 0.0028
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	4.31 ± 0.16 s
Spin	5/2
nuclear quadrupole moment	1.18 ± 0.02
tarikh penemuan	1974
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴⁶Ba

Nombor jisim	146
nombor neutron	90
Jisim Atom Relatif	145.9303632 ± 0.0000019 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	2.15 ± 0.04 s
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1970
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

¹⁴⁷Ba

Nombor jisim	147
nombor neutron	91
Jisim Atom Relatif	146.9353039 ± 0.0000212 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	893 ± 1 ms
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	1978
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.07%

¹⁴⁸Ba

Nombor jisim	148
nombor neutron	92
Jisim Atom Relatif	147.938223 ± 0.0000016 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	620 ± 5 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1979
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	0.4%

¹⁴⁹Ba

Nombor jisim	149
nombor neutron	93
Jisim Atom Relatif	148.943284 ± 0.0000027 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	349 ± 4 ms
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	1993
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	3.9%

¹⁵⁰Ba

Nombor jisim	150
nombor neutron	94
Jisim Atom Relatif	149.9464411 ± 0.0000061 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	258 ± 5 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	1994
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)	1%

¹⁵¹Ba

Nombor jisim	151
nombor neutron	95
Jisim Atom Relatif	150.951755 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	167 ± 5 ms
Spin	3/2
nuclear quadrupole moment
tarikh penemuan	1994
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁵²Ba

Nombor jisim	152
nombor neutron	96
Jisim Atom Relatif	151.95533 ± 0.000429 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	139 ± 8 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	2010
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)

¹⁵³Ba

Nombor jisim	153
nombor neutron	97
Jisim Atom Relatif	152.960848 ± 0.000429 Da
g-factor
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	113 ± 39 ms
Spin	5/2
nuclear quadrupole moment
tarikh penemuan	2016
parity	-

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%
β⁻ n (β⁻-delayed neutron emission)
2n (2-neutron emission)

¹⁵⁴Ba

Nombor jisim	154
nombor neutron	98
Jisim Atom Relatif	153.964659 ± 0.000537 Da
g-factor	0
natural abundance
Reputan radioaktif	☢️ radioactive element
setengah hayat	53 ± 48 ms
Spin	0
nuclear quadrupole moment	0
tarikh penemuan	2017
parity	+

decay mode	Keamatan (fizik)
β⁻ (β⁻ decay)	100%

sejarah

penemu atau pereka	Sir Humphrey Davy
tempat penemuan	England
tarikh penemuan	1808
Etimologi	Greek: barys (heavy or dense).
sebutan	BAR-i-em (Inggeris)

sumber

Abundance
Abundance in Earth's crust	425 mg/kg
natural abundance (lautan)	0.013 mg/L
natural abundance (Tubuh manusia)	0.00003 %
natural abundance (Meteoroid)	0.00027 %
natural abundance (Matahari)	0.000001 %
Abundance in Universe	0.000001 %

Nuclear Screening Constants

1	s	1.1139
2	p	4.1904
2	s	14.7532
3	d	13.9757
3	p	18.6836
3	s	18.8444
4	d	32.216
4	p	29.1968
4	s	28.08
5	p	41.1995
5	s	39.3805
6	s	48.425

Barium on ChemicalAid

Barium (Ba)

Sifat Fizikal

Sifat Kimia

other

Isotopes of Barium

113Ba

114Ba

115Ba

116Ba

117Ba

118Ba

119Ba

120Ba

121Ba

122Ba

123Ba

124Ba

125Ba

126Ba

127Ba

128Ba

129Ba

130Ba

131Ba

132Ba

133Ba

134Ba

135Ba

136Ba

137Ba

138Ba

139Ba

140Ba

141Ba

142Ba

143Ba

144Ba

145Ba

146Ba

147Ba

148Ba

149Ba

150Ba

151Ba

152Ba

153Ba

154Ba

sejarah

sumber

Nuclear Screening Constants

¹¹³Ba

¹¹⁴Ba

¹¹⁵Ba

¹¹⁶Ba

¹¹⁷Ba

¹¹⁸Ba

¹¹⁹Ba

¹²⁰Ba

¹²¹Ba

¹²²Ba

¹²³Ba

¹²⁴Ba

¹²⁵Ba

¹²⁶Ba

¹²⁷Ba

¹²⁸Ba

¹²⁹Ba

¹³⁰Ba

¹³¹Ba

¹³²Ba

¹³³Ba

¹³⁴Ba

¹³⁵Ba

¹³⁶Ba

¹³⁷Ba

¹³⁸Ba

¹³⁹Ba

¹⁴⁰Ba

¹⁴¹Ba

¹⁴²Ba

¹⁴³Ba

¹⁴⁴Ba

¹⁴⁵Ba

¹⁴⁶Ba

¹⁴⁷Ba

¹⁴⁸Ba

¹⁴⁹Ba

¹⁵⁰Ba

¹⁵¹Ba

¹⁵²Ba

¹⁵³Ba

¹⁵⁴Ba