Caeisiam

Caeisiam (Cs)

chemical element with symbol Cs and atomic number 55
Atomic Number55
Atomic Weight132.90545196
Núicléónuimhir133
Group1
Period6
Blocks
prótón55 p+
neodrón78 n0
leictreon55 e-
Animated Samhail Bohr of Cs (Caeisiam)

Physical Property

Ga Adamhach
molar volume
covalent radius
Metallic Radius
ionic radius
Crystal Radius
Van der Waals radius
dlús
Atomic Radii Of The Elements: Caeisiam0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350pmGa AdamhachCovalent RadiusMetallic RadiusVan der Waals radius

Chemical Property

fuinneamh
proton affinity
electron affinity
ionization energy
ionization energy of Cs (Caeisiam)
enthalpy of vaporization
enthalpy of fusion
eantalpacht chaighdeánach an fhoirmithe
leictreon
electron shell2, 8, 18, 18, 8, 1
Samhail Bohr: Cs (Caeisiam)
Fiúsleictreon1
Struchtúr Lewis: Cs (Caeisiam)
cumraíocht leictreon[Xe] 6s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s1
Enhanced Samhail Bohr of Cs (Caeisiam)
Orbital Diagram of Cs (Caeisiam)
Staid ocsaídiúcháine-1, 1
Leictridhiúltacht
0.79
Electrophilicity Index
fundamental state of matter
phase of matterSolid
gaseous state of matter
Boiling Point
Melting Point
critical pressure
critical temperature
triple point
appearance
dath
Silver
appearancesilvery gold
Comhéifeacht athraonta
thermodynamic material property
Thermal Conductivity
Forbairt theirmeach
molar heat capacity
Specific Heat Capacity
Cóimheas saintoilleadh teasa
electrical properties
typeConductor
electrical conductivity
Friotachas
Forsheoltacht
Maighnéadas
typeparamagnetic
So-ghabhálacht mhaighnéadach (Mass)
0.0000000028 m³/Kg
So-ghabhálacht mhaighnéadach (Molar)
0.000000000372 m³/mol
So-ghabhálacht mhaighnéadach (Volume)
0.00000526
magnetic ordering
Teocht Curie
Néel temperature
struchtúr
Crystal StructureBody Centered Cubic (BCC)
lattice constant
Lattice Anglesπ/2, π/2, π/2
airíonna meicniúla
Cruas
Modal toirte
modal fiartha
modal Young
Cóimheas Poisson
luas forleata fuaime
aicmiúchán
CategoryAlkali metals, Alkali metals
CAS GroupIA
IUPAC GroupIA
Glawe Number8
Mendeleev Number5
Pettifor Number8
Geochemical Classalkali metal
Goldschmidt classificationlitophile

eile

Gas Basicity
polarizability
C6 Dispersion Coefficient
allotrope
Crosghearradh
29
Neutron Mass Absorption
0.0077
Uimhir chandamach2S1/2
space group229 (Im_3m)

Isotopes of Cesium

Stable Isotopes1
Unstable Isotopes41
Natural Isotopes1

111Cs

Núicléónuimhir111
neutron number56
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
Guairne3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh
Paireacht+

decay modeintensity
p (proton emission)

112Cs

Núicléónuimhir112
neutron number57
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
490 ± 30 us
Guairne1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1994
Paireacht+

decay modeintensity
p (proton emission)100%
α (α emission)0.26%

113Cs

Núicléónuimhir113
neutron number58
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
16.94 ± 0.09 us
Guairne3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1984
Paireacht+

decay modeintensity
p (proton emission)100%

114Cs

Núicléónuimhir114
neutron number59
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
570 ± 20 ms
Guairne1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1978
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
α (α emission)0.018%
β+ p (β+-delayed proton emission)8.7%
β+α (β+-delayed α emission)0.19%

115Cs

Núicléónuimhir115
neutron number60
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
1.4 ± 0.8 s
Guairne9/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1978
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.07%

116Cs

Núicléónuimhir116
neutron number61
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
700 ± 40 ms
Guairne1
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1975
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.28%
β+α (β+-delayed α emission)0.049%

117Cs

Núicléónuimhir117
neutron number62
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
8.4 ± 0.6 s
Guairne9/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1972
Paireacht+

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

118Cs

Núicléónuimhir118
neutron number63
Mais Adamhach Choibhneasta
G-fhachtóir
1.935 ± 0.0025
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
14 ± 2 s
Guairne2
nuclear quadrupole moment
1.31 ± 0.17
dáta fionnachtana nó tionscnaimh1969
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+ p (β+-delayed proton emission)0.021%
β+α (β+-delayed α emission)0.0012%

119Cs

Núicléónuimhir119
neutron number64
Mais Adamhach Choibhneasta
G-fhachtóir
1.2111111111111 ± 0.0066666666666667
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
43 ± 0.2 s
Guairne9/2
nuclear quadrupole moment
2.65 ± 0.17
dáta fionnachtana nó tionscnaimh1969
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+α (β+-delayed α emission)2%

120Cs

Núicléónuimhir120
neutron number65
Mais Adamhach Choibhneasta
G-fhachtóir
1.93 ± 0.01
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
60.4 ± 0.6 s
Guairne2
nuclear quadrupole moment
1.36 ± 0.07
dáta fionnachtana nó tionscnaimh1969
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+α (β+-delayed α emission)2%
β+ p (β+-delayed proton emission)7%

121Cs

Núicléónuimhir121
neutron number66
Mais Adamhach Choibhneasta
G-fhachtóir
0.51266666666667 ± 0.0026666666666667
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
155 ± 4 s
Guairne3/2
nuclear quadrupole moment
0.79 ± 0.04
dáta fionnachtana nó tionscnaimh1969
Paireacht+

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

122Cs

Núicléónuimhir122
neutron number67
Mais Adamhach Choibhneasta
G-fhachtóir
0.133 ± 0.002
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
21.18 ± 0.19 s
Guairne1
nuclear quadrupole moment
-0.179 ± 0.01
dáta fionnachtana nó tionscnaimh1969
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)100%
β+α (β+-delayed α emission)2%

123Cs

Núicléónuimhir123
neutron number68
Mais Adamhach Choibhneasta
G-fhachtóir
2.75 ± 0.014
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
5.88 ± 0.03 m
Guairne1/2
nuclear quadrupole moment
0
dáta fionnachtana nó tionscnaimh1954
Paireacht+

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

124Cs

Núicléónuimhir124
neutron number69
Mais Adamhach Choibhneasta
G-fhachtóir
0.672 ± 0.003
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
30.9 ± 0.4 s
Guairne1
nuclear quadrupole moment
-0.69 ± 0.04
dáta fionnachtana nó tionscnaimh1969
Paireacht+

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

125Cs

Núicléónuimhir125
neutron number70
Mais Adamhach Choibhneasta
G-fhachtóir
2.814 ± 0.014
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
44.35 ± 0.29 m
Guairne1/2
nuclear quadrupole moment
0
dáta fionnachtana nó tionscnaimh1954
Paireacht+

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

126Cs

Núicléónuimhir126
neutron number71
Mais Adamhach Choibhneasta
G-fhachtóir
0.776 ± 0.004
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
1.64 ± 0.02 m
Guairne1
nuclear quadrupole moment
-0.64 ± 0.03
dáta fionnachtana nó tionscnaimh1954
Paireacht+

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

127Cs

Núicléónuimhir127
neutron number72
Mais Adamhach Choibhneasta
G-fhachtóir
2.914 ± 0.014
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
6.25 ± 0.1 h
Guairne1/2
nuclear quadrupole moment
0
dáta fionnachtana nó tionscnaimh1950
Paireacht+

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

128Cs

Núicléónuimhir128
neutron number73
Mais Adamhach Choibhneasta
G-fhachtóir
0.972 ± 0.005
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
3.64 ± 0.014 m
Guairne1
nuclear quadrupole moment
-0.54 ± 0.03
dáta fionnachtana nó tionscnaimh1951
Paireacht+

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

129Cs

Núicléónuimhir129
neutron number74
Mais Adamhach Choibhneasta
G-fhachtóir
2.978 ± 0.016
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
32.06 ± 0.06 h
Guairne1/2
nuclear quadrupole moment
0
dáta fionnachtana nó tionscnaimh1950
Paireacht+

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

130Cs

Núicléónuimhir130
neutron number75
Mais Adamhach Choibhneasta
G-fhachtóir
1.458 ± 0.007
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
29.21 ± 0.04 m
Guairne1
nuclear quadrupole moment
-0.056 ± 0.006
dáta fionnachtana nó tionscnaimh1952
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)98.4%
β (β decay)1.6%

131Cs

Núicléónuimhir131
neutron number76
Mais Adamhach Choibhneasta
G-fhachtóir
1.4144 ± 0.0012
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
9.689 ± 0.016 d
Guairne5/2
nuclear quadrupole moment
0.59 ± 0.02
dáta fionnachtana nó tionscnaimh1947
Paireacht+

decay modeintensity
ϵ (electron capture)100%

132Cs

Núicléónuimhir132
neutron number77
Mais Adamhach Choibhneasta
G-fhachtóir
1.1095 ± 0.0035
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
6.48 ± 0.006 d
Guairne2
nuclear quadrupole moment
0.48 ± 0.02
dáta fionnachtana nó tionscnaimh1953
Paireacht+

decay modeintensity
β+ (β+ decay; β+ = ϵ + e+)98.13%
β (β decay)1.87%

133Cs

Núicléónuimhir133
neutron number78
Mais Adamhach Choibhneasta
G-fhachtóir
0.73651428571429 ± 0.0004
natural abundance
100
Meath radaighníomhachstable isotope
leathréNot Radioactive ☢️
Guairne7/2
nuclear quadrupole moment
-0.00343 ± 0.0001
dáta fionnachtana nó tionscnaimh1921
Paireacht+

134Cs

Núicléónuimhir134
neutron number79
Mais Adamhach Choibhneasta
G-fhachtóir
0.747325 ± 0.00035
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
2.065 ± 0.0004 y
Guairne4
nuclear quadrupole moment
0.37 ± 0.02
dáta fionnachtana nó tionscnaimh1940
Paireacht+

decay modeintensity
β (β decay)100%
ϵ (electron capture)0.0003%

135Cs

Núicléónuimhir135
neutron number80
Mais Adamhach Choibhneasta
G-fhachtóir
0.77951428571429 ± 0.00037142857142857
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
1.33 ± 0.19 My
Guairne7/2
nuclear quadrupole moment
0.048 ± 0.003
dáta fionnachtana nó tionscnaimh1949
Paireacht+

decay modeintensity
β (β decay)100%

136Cs

Núicléónuimhir136
neutron number81
Mais Adamhach Choibhneasta
G-fhachtóir
0.741 ± 0.003
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
13.01 ± 0.05 d
Guairne5
nuclear quadrupole moment
0.213 ± 0.015
dáta fionnachtana nó tionscnaimh1951
Paireacht+

decay modeintensity
β (β decay)100%

137Cs

Núicléónuimhir137
neutron number82
Mais Adamhach Choibhneasta
G-fhachtóir
0.81068571428571 ± 0.0004
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
30.04 ± 0.04 y
Guairne7/2
nuclear quadrupole moment
0.048 ± 0.002
dáta fionnachtana nó tionscnaimh1951
Paireacht+

decay modeintensity
β (β decay)100%

138Cs

Núicléónuimhir138
neutron number83
Mais Adamhach Choibhneasta
G-fhachtóir
0.233 ± 0.0013333333333333
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
33.5 ± 0.2 m
Guairne3
nuclear quadrupole moment
0.112 ± 0.017
dáta fionnachtana nó tionscnaimh1943
Paireacht-

decay modeintensity
β (β decay)100%

139Cs

Núicléónuimhir139
neutron number84
Mais Adamhach Choibhneasta
G-fhachtóir
0.768 ± 0.0011428571428571
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
9.27 ± 0.05 m
Guairne7/2
nuclear quadrupole moment
-0.063 ± 0.014
dáta fionnachtana nó tionscnaimh1939
Paireacht+

decay modeintensity
β (β decay)100%

140Cs

Núicléónuimhir140
neutron number85
Mais Adamhach Choibhneasta
G-fhachtóir
0.134 ± 0.001
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
63.7 ± 0.3 s
Guairne1
nuclear quadrupole moment
-0.094 ± 0.015
dáta fionnachtana nó tionscnaimh1950
Paireacht-

decay modeintensity
β (β decay)100%

141Cs

Núicléónuimhir141
neutron number86
Mais Adamhach Choibhneasta
G-fhachtóir
0.69457142857143 ± 0.0028571428571429
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
24.84 ± 0.16 s
Guairne7/2
nuclear quadrupole moment
-0.42 ± 0.07
dáta fionnachtana nó tionscnaimh1962
Paireacht+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.0342%

142Cs

Núicléónuimhir142
neutron number87
Mais Adamhach Choibhneasta
G-fhachtóir
0
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
1.687 ± 0.01 s
Guairne0
nuclear quadrupole moment
0
dáta fionnachtana nó tionscnaimh1962
Paireacht-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)0.089%

143Cs

Núicléónuimhir143
neutron number88
Mais Adamhach Choibhneasta
G-fhachtóir
0.57933333333333 ± 0.0026666666666667
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
1.802 ± 0.008 s
Guairne3/2
nuclear quadrupole moment
0.44 ± 0.03
dáta fionnachtana nó tionscnaimh1962
Paireacht+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)1.62%

144Cs

Núicléónuimhir144
neutron number89
Mais Adamhach Choibhneasta
G-fhachtóir
-0.545 ± 0.003
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
994 ± 6 ms
Guairne1
nuclear quadrupole moment
0.29 ± 0.02
dáta fionnachtana nó tionscnaimh1967
Paireacht-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)2.98%

145Cs

Núicléónuimhir145
neutron number90
Mais Adamhach Choibhneasta
G-fhachtóir
0.522 ± 0.0026666666666667
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
582 ± 4 ms
Guairne3/2
nuclear quadrupole moment
0.58 ± 0.06
dáta fionnachtana nó tionscnaimh1971
Paireacht+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)12.8%

146Cs

Núicléónuimhir146
neutron number91
Mais Adamhach Choibhneasta
G-fhachtóir
-0.514 ± 0.002
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
321.6 ± 0.9 ms
Guairne1
nuclear quadrupole moment
0.21 ± 0.03
dáta fionnachtana nó tionscnaimh1971
Paireacht-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)14.2%
2n (2-neutron emission)

147Cs

Núicléónuimhir147
neutron number92
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
230.5 ± 0.9 ms
Guairne3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1978
Paireacht+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)28.5%

148Cs

Núicléónuimhir148
neutron number93
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
151.8 ± 1 ms
Guairne2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1978
Paireacht-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)28.7%
2n (2-neutron emission)

149Cs

Núicléónuimhir149
neutron number94
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
112.3 ± 2.5 ms
Guairne3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1979
Paireacht+

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)25%
2n (2-neutron emission)

150Cs

Núicléónuimhir150
neutron number95
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
81 ± 2.6 ms
Guairne2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1979
Paireacht-

decay modeintensity
β (β decay)100%
β n (β-delayed neutron emission)44%
2n (2-neutron emission)

151Cs

Núicléónuimhir151
neutron number96
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
59 ± 19 ms
Guairne3/2
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1979
Paireacht+

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

152Cs

Núicléónuimhir152
neutron number97
Mais Adamhach Choibhneasta
G-fhachtóir
natural abundance
Meath radaighníomhach☢️ radioactive element
leathré
Guairne
nuclear quadrupole moment
dáta fionnachtana nó tionscnaimh1987
Paireacht

decay modeintensity
β (β decay)
β n (β-delayed neutron emission)
Cesium

stair

fionnachtaí nó aireagóirGustov Kirchoff, Robert Bunsen
áit ar tháinig air/uirthiGermany
dáta fionnachtana nó tionscnaimh1860
SanasaíochtLatin: coesius (sky blue); for the blue lines of its spectrum.
pronunciationSEE-zi-em (Béarla)

foinse

Abundance
Abundance in Earth's crust
natural abundance (aigéan)
natural abundance (corp an duine)
0.000002 %
natural abundance (dreigeoideach)
0.000014 %
natural abundance (An Ghrian)
0.0000008 %
Abundance in Universe
0.00000008 %

Nuclear Screening Constants

1s1.0957
2p4.1804
2s14.4884
3d14.0194
3p18.4222
3s18.6226
4d32.1616
4p29.1424
4s27.9576
5p41.349
5s39.5555
6s48.637