Zesioa

Zesioa (Cs)

55 zenbaki atomikoa duen elementu kimikoa
Atomic Number55
Atomic Weight132.90545196
masa-zenbaki133
Group1
Period6
Blocks
protoi55 p+
neutroi78 n0
elektroi55 e-
Animated Bohrren eredu atomikoa of Cs (Zesioa)

Propietate Fisiko

Erradio Atomiko
260 pm
bolumen molar
Erradio Kobalente
232 pm
Metallic Radius
235 pm
Erradio ioniko
167 pm
Crystal Radius
181 pm
Van der Waalsen erradio
343 pm
dentsitatea
1,873 g/cm³
Atomic Radii Of The Elements: Zesioa0102030405060708090100110120130140150160170180190200210220230240250260270280290300310320330340350pmErradio AtomikoErradio KobalenteMetallic RadiusVan der Waalsen erradio

Magnitude Fisiko

energia
proton affinity
Afinitate elektroniko
0,471626 eV/particle
ionizazio energia
3,893905548 eV/particle
ionizazio energia of Cs (Zesioa)
Irakite-entalpia
68,3 kJ/mol
urtze-entalpia
2,09 kJ/mol
formazio entalpia estandarra
76,5 kJ/mol
elektroi
elektroi geruza2, 8, 18, 18, 8, 1
Bohrren eredu atomikoa: Cs (Zesioa)
balentzia-elektroi1
Lewis egitura: Cs (Zesioa)
electron configuration[Xe] 6s1
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s1
Enhanced Bohrren eredu atomikoa of Cs (Zesioa)
Orbital Diagram of Cs (Zesioa)
Oxidazio-egoera-1, 1
Elektronegatibotasun
0.79
Electrophilicity Index
0,696095447101947 eV/particle
materiaren funtsezko egoera
materiaren egoeraSolid
materiaren egoera gaseoso
Boiling Point
944,15 K
Melting Point
301,65 K
critical pressure
9,4 MPa
critical temperature
1.938,15 K
Puntu hirukoitz
appearance
kolore
Silver
appearancesilvery gold
errefrakzio-indize
thermodynamic material property
Thermal Conductivity
35,9 W/(m K)
Bero-dilatazio
molar heat capacity
32,21 J/(mol K)
Specific Heat Capacity
0,242 J/(g⋅K)
indize adiabatiko
electrical properties
typeConductor
Eroankortasun elektriko
5 MS/m
Erresistibitate elektriko
0,0000002 m Ω
Supereroankortasun
Magnetismo
typeparamagnetic
suszeptibilitate magnetiko (Mass)
0,0000000028 m³/Kg
suszeptibilitate magnetiko (Molar)
0,000000000372 m³/mol
suszeptibilitate magnetiko (Volume)
0,00000526
magnetic ordering
Curieren tenperatura
Néel temperature
egitura
Crystal StructureBody Centered Cubic (BCC)
lattice constant
6,05 Å
Lattice Anglesπ/2, π/2, π/2
materialen propietate mekaniko
Gogortasun
0,2 MPa
konprimagarritasun-modulu
1,6 GPa
Zizaila modulua
Youngen modulu
1,7 GPa
Poissonen modulu
Soinuaren lastertasun
classification
CategoryAlkali metals, Alkali metals
CAS GroupIA
IUPAC GroupIA
Glawe Number8
Mendeleev Number5
Pettifor Number8
Geochemical Classalkali metal
Goldschmidt classificationlitophile

beste batzuk

Gas Basicity
polarizability
400,9 ± 0,7 a₀
C6 Dispersion Coefficient
allotrope
Neutron cross section
29
Neutron Mass Absorption
0,0077
zenbaki kuantiko2S1/2
talde espazial229 (Im_3m)

Isotopes of Cesium

Stable Isotopes1
Unstable Isotopes41
Natural Isotopes1

111Cs

masa-zenbaki111
neutron number56
atomo-masa erlatibo
110,953945 ± 0,000215 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin3/2
nuclear quadrupole moment
aurkikuntza-data
parity+

decay modeintensity
p (proton emission)

112Cs

masa-zenbaki112
neutron number57
atomo-masa erlatibo
111,950172 ± 0,000124 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
490 ± 30 us
spin1
nuclear quadrupole moment
aurkikuntza-data1994
parity+

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

113Cs

masa-zenbaki113
neutron number58
atomo-masa erlatibo
112,944428484 ± 0,000009207 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
16,94 ± 0,09 us
spin3/2
nuclear quadrupole moment
aurkikuntza-data1984
parity+

decay modeintensity
p (proton emission)100%

114Cs

masa-zenbaki114
neutron number59
atomo-masa erlatibo
113,941292244 ± 0,000091323 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
570 ± 20 ms
spin1
nuclear quadrupole moment
aurkikuntza-data1978
parity+

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

masa-zenbaki115
neutron number60
atomo-masa erlatibo
114,93591 ± 0,00011 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,4 ± 0,8 s
spin9/2
nuclear quadrupole moment
aurkikuntza-data1978
parity+

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

116Cs

masa-zenbaki116
neutron number61
atomo-masa erlatibo
115,933395 ± 0,000108 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
700 ± 40 ms
spin1
nuclear quadrupole moment
aurkikuntza-data1975
parity+

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

masa-zenbaki117
neutron number62
atomo-masa erlatibo
116,928616723 ± 0,000067 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
8,4 ± 0,6 s
spin9/2
nuclear quadrupole moment
aurkikuntza-data1972
parity+

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

118Cs

masa-zenbaki118
neutron number63
atomo-masa erlatibo
117,926559517 ± 0,00001369 Da
g-factor
1,935 ± 0,0025
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
14 ± 2 s
spin2
nuclear quadrupole moment
1,31 ± 0,17
aurkikuntza-data1969
parity+

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

masa-zenbaki119
neutron number64
atomo-masa erlatibo
118,922377327 ± 0,000014965 Da
g-factor
1,2111111111111 ± 0,0066666666666667
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
43 ± 0,2 s
spin9/2
nuclear quadrupole moment
2,65 ± 0,17
aurkikuntza-data1969
parity+

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

120Cs

masa-zenbaki120
neutron number65
atomo-masa erlatibo
119,920677277 ± 0,000010702 Da
g-factor
1,93 ± 0,01
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
60,4 ± 0,6 s
spin2
nuclear quadrupole moment
1,36 ± 0,07
aurkikuntza-data1969
parity+

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

121Cs

masa-zenbaki121
neutron number66
atomo-masa erlatibo
120,917227235 ± 0,00001534 Da
g-factor
0,51266666666667 ± 0,0026666666666667
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
155 ± 4 s
spin3/2
nuclear quadrupole moment
0,79 ± 0,04
aurkikuntza-data1969
parity+

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

122Cs

masa-zenbaki122
neutron number67
atomo-masa erlatibo
121,916108144 ± 0,000036164 Da
g-factor
0,133 ± 0,002
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
21,18 ± 0,19 s
spin1
nuclear quadrupole moment
−0,179 ± 0,01
aurkikuntza-data1969
parity+

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

123Cs

masa-zenbaki123
neutron number68
atomo-masa erlatibo
122,91299606 ± 0,000013 Da
g-factor
2,75 ± 0,014
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
5,88 ± 0,03 m
spin1/2
nuclear quadrupole moment
0
aurkikuntza-data1954
parity+

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

124Cs

masa-zenbaki124
neutron number69
atomo-masa erlatibo
123,912247366 ± 0,000009823 Da
g-factor
0,672 ± 0,003
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
30,9 ± 0,4 s
spin1
nuclear quadrupole moment
−0,69 ± 0,04
aurkikuntza-data1969
parity+

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

125Cs

masa-zenbaki125
neutron number70
atomo-masa erlatibo
124,909725953 ± 0,000008304 Da
g-factor
2,814 ± 0,014
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
44,35 ± 0,29 m
spin1/2
nuclear quadrupole moment
0
aurkikuntza-data1954
parity+

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

126Cs

masa-zenbaki126
neutron number71
atomo-masa erlatibo
125,909445821 ± 0,00001112 Da
g-factor
0,776 ± 0,004
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,64 ± 0,02 m
spin1
nuclear quadrupole moment
−0,64 ± 0,03
aurkikuntza-data1954
parity+

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

127Cs

masa-zenbaki127
neutron number72
atomo-masa erlatibo
126,907417527 ± 0,000005987 Da
g-factor
2,914 ± 0,014
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
6,25 ± 0,1 h
spin1/2
nuclear quadrupole moment
0
aurkikuntza-data1950
parity+

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

128Cs

masa-zenbaki128
neutron number73
atomo-masa erlatibo
127,907748452 ± 0,000005771 Da
g-factor
0,972 ± 0,005
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
3,64 ± 0,014 m
spin1
nuclear quadrupole moment
−0,54 ± 0,03
aurkikuntza-data1951
parity+

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

129Cs

masa-zenbaki129
neutron number74
atomo-masa erlatibo
128,90606591 ± 0,000004888 Da
g-factor
2,978 ± 0,016
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
32,06 ± 0,06 h
spin1/2
nuclear quadrupole moment
0
aurkikuntza-data1950
parity+

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

130Cs

masa-zenbaki130
neutron number75
atomo-masa erlatibo
129,906709281 ± 0,000008971 Da
g-factor
1,458 ± 0,007
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
29,21 ± 0,04 m
spin1
nuclear quadrupole moment
−0,056 ± 0,006
aurkikuntza-data1952
parity+

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

131Cs

masa-zenbaki131
neutron number76
atomo-masa erlatibo
130,905468457 ± 0,00000019 Da
g-factor
1,4144 ± 0,0012
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
9,689 ± 0,016 d
spin5/2
nuclear quadrupole moment
0,59 ± 0,02
aurkikuntza-data1947
parity+

decay modeintensity
ϵ (electron capture)100%

132Cs

masa-zenbaki132
neutron number77
atomo-masa erlatibo
131,90643774 ± 0,000001112 Da
g-factor
1,1095 ± 0,0035
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
6,48 ± 0,006 d
spin2
nuclear quadrupole moment
0,48 ± 0,02
aurkikuntza-data1953
parity+

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

133Cs

masa-zenbaki133
neutron number78
atomo-masa erlatibo
132,905451958 ± 0,000000008 Da
g-factor
0,73651428571429 ± 0,0004
natural abundance
100
desintegrazio erradioaktiboisotopo egonkor
Semidesintegrazio-periodoNot Radioactive ☢️
spin7/2
nuclear quadrupole moment
−0,00343 ± 0,0001
aurkikuntza-data1921
parity+

134Cs

masa-zenbaki134
neutron number79
atomo-masa erlatibo
133,906718501 ± 0,000000017 Da
g-factor
0,747325 ± 0,00035
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
2,065 ± 0,0004 y
spin4
nuclear quadrupole moment
0,37 ± 0,02
aurkikuntza-data1940
parity+

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

135Cs

masa-zenbaki135
neutron number80
atomo-masa erlatibo
134,905976907 ± 0,00000039 Da
g-factor
0,77951428571429 ± 0,00037142857142857
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,33 ± 0,19 My
spin7/2
nuclear quadrupole moment
0,048 ± 0,003
aurkikuntza-data1949
parity+

decay modeintensity
β (β decay)100%

136Cs

masa-zenbaki136
neutron number81
atomo-masa erlatibo
135,907311431 ± 0,00000201 Da
g-factor
0,741 ± 0,003
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
13,01 ± 0,05 d
spin5
nuclear quadrupole moment
0,213 ± 0,015
aurkikuntza-data1951
parity+

decay modeintensity
β (β decay)100%

137Cs

masa-zenbaki137
neutron number82
atomo-masa erlatibo
136,907089296 ± 0,000000324 Da
g-factor
0,81068571428571 ± 0,0004
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
30,04 ± 0,04 y
spin7/2
nuclear quadrupole moment
0,048 ± 0,002
aurkikuntza-data1951
parity+

decay modeintensity
β (β decay)100%

138Cs

masa-zenbaki138
neutron number83
atomo-masa erlatibo
137,911017119 ± 0,000009831 Da
g-factor
0,233 ± 0,0013333333333333
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
33,5 ± 0,2 m
spin3
nuclear quadrupole moment
0,112 ± 0,017
aurkikuntza-data1943
parity-

decay modeintensity
β (β decay)100%

139Cs

masa-zenbaki139
neutron number84
atomo-masa erlatibo
138,913363822 ± 0,000003364 Da
g-factor
0,768 ± 0,0011428571428571
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
9,27 ± 0,05 m
spin7/2
nuclear quadrupole moment
−0,063 ± 0,014
aurkikuntza-data1939
parity+

decay modeintensity
β (β decay)100%

140Cs

masa-zenbaki140
neutron number85
atomo-masa erlatibo
139,917283707 ± 0,000008801 Da
g-factor
0,134 ± 0,001
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
63,7 ± 0,3 s
spin1
nuclear quadrupole moment
−0,094 ± 0,015
aurkikuntza-data1950
parity-

decay modeintensity
β (β decay)100%

141Cs

masa-zenbaki141
neutron number86
atomo-masa erlatibo
140,920045279 ± 0,000009871 Da
g-factor
0,69457142857143 ± 0,0028571428571429
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
24,84 ± 0,16 s
spin7/2
nuclear quadrupole moment
−0,42 ± 0,07
aurkikuntza-data1962
parity+

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

142Cs

masa-zenbaki142
neutron number87
atomo-masa erlatibo
141,924299514 ± 0,000007586 Da
g-factor
0
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,687 ± 0,01 s
spin0
nuclear quadrupole moment
0
aurkikuntza-data1962
parity-

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

143Cs

masa-zenbaki143
neutron number88
atomo-masa erlatibo
142,927347346 ± 0,00000813 Da
g-factor
0,57933333333333 ± 0,0026666666666667
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
1,802 ± 0,008 s
spin3/2
nuclear quadrupole moment
0,44 ± 0,03
aurkikuntza-data1962
parity+

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

144Cs

masa-zenbaki144
neutron number89
atomo-masa erlatibo
143,932075402 ± 0,000021612 Da
g-factor
−0,545 ± 0,003
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
994 ± 6 ms
spin1
nuclear quadrupole moment
0,29 ± 0,02
aurkikuntza-data1967
parity-

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

145Cs

masa-zenbaki145
neutron number90
atomo-masa erlatibo
144,935528927 ± 0,000009733 Da
g-factor
0,522 ± 0,0026666666666667
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
582 ± 4 ms
spin3/2
nuclear quadrupole moment
0,58 ± 0,06
aurkikuntza-data1971
parity+

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

146Cs

masa-zenbaki146
neutron number91
atomo-masa erlatibo
145,940621867 ± 0,000003106 Da
g-factor
−0,514 ± 0,002
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
321,6 ± 0,9 ms
spin1
nuclear quadrupole moment
0,21 ± 0,03
aurkikuntza-data1971
parity-

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

147Cs

masa-zenbaki147
neutron number92
atomo-masa erlatibo
146,944261512 ± 0,000009 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
230,5 ± 0,9 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data1978
parity+

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

148Cs

masa-zenbaki148
neutron number93
atomo-masa erlatibo
147,949639026 ± 0,000014 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
151,8 ± 1 ms
spin2
nuclear quadrupole moment
aurkikuntza-data1978
parity-

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

149Cs

masa-zenbaki149
neutron number94
atomo-masa erlatibo
148,953516 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
112,3 ± 2,5 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data1979
parity+

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

150Cs

masa-zenbaki150
neutron number95
atomo-masa erlatibo
149,959023 ± 0,000429 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
81 ± 2,6 ms
spin2
nuclear quadrupole moment
aurkikuntza-data1979
parity-

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

151Cs

masa-zenbaki151
neutron number96
atomo-masa erlatibo
150,963199 ± 0,000537 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
59 ± 19 ms
spin3/2
nuclear quadrupole moment
aurkikuntza-data1979
parity+

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

152Cs

masa-zenbaki152
neutron number97
atomo-masa erlatibo
151,968728 ± 0,000537 Da
g-factor
natural abundance
desintegrazio erradioaktibo☢️ radioactive element
Semidesintegrazio-periodo
spin
nuclear quadrupole moment
aurkikuntza-data1987
parity

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

historia

aurkitzailea edo asmatzaileaGustov Kirchoff, Robert Bunsen
aurkikuntzaren lekuaGermany
aurkikuntza-data1860
etimologiaLatin: coesius (sky blue); for the blue lines of its spectrum.
pronunciationSEE-zi-em (ingelesa)

source

Abundance
Abundance in Earth's crust
natural abundance (ozeano)
0,0003 mg/L
natural abundance (gizakiaren gorputza)
0,000002 %
natural abundance (Meteoroide)
0,000014 %
natural abundance (Eguzkia)
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