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Cerium
Lattice Angles of Cerium
Cu (Symbol of Copper)
2 (Atomic Number of Helium)
Boiling Point of Radon in °F
Cesium (Cs) Properties
Cs
Cesium
Properties
36 /
87
Atomic Mass
132.9
amu
Atomic Number
55
Block
S
Boiling Point
944
K
Conductivity (Electric)
5
MS/m
Conductivity (Thermal)
36
W/mK
Crystal Structure
Body-centered Cubic
Decay Mode
—
Density (Liquid)
1843
kg/m³
Density (STP)
1879
kg/m³
Electron Affinity
45.51
kJ/mol
Electron Configuration (Semantic)
[Xe] 6s¹
Electronegativity (Pauling)
0.79
Electrons per Shell
2, 8, 18, 18, 8, 1
Group
1
Half Life
Stable
year
Heat (Fusion)
2.09
kJ/mol
Heat (Molar)
32.21
J/K.mol
Heat (Specific)
242
J/(kg K)
Heat (Vaporization)
65
kJ/mol
Ionization Energies
375.7, 2234, 3400
kJ/mol
Isotopes Known
¹¹²Cs, ¹¹³Cs, ¹¹⁴Cs, ¹¹⁵Cs, ¹¹⁶Cs, ¹¹⁷Cs, ¹¹⁸Cs, ¹¹⁹Cs, ¹²⁰Cs, ¹²¹Cs, ¹²²Cs, ¹²³Cs, ¹²⁴Cs, ¹²⁵Cs, ¹²⁶Cs, ¹²⁷Cs, ¹²⁸Cs, ¹²⁹Cs, ¹³⁰Cs, ¹³¹Cs, ¹³²Cs, ¹³³Cs, ¹³⁴Cs, ¹³⁵Cs, ¹³⁶Cs, ¹³⁷Cs, ¹³⁸Cs, ¹³⁹Cs, ¹⁴⁰Cs, ¹⁴¹Cs, ¹⁴²Cs, ¹⁴³Cs, ¹⁴⁴Cs, ¹⁴⁵Cs, ¹⁴⁶Cs, ¹⁴⁷Cs, ¹⁴⁸Cs, ¹⁴⁹Cs, ¹⁵⁰Cs, ¹⁵¹Cs
Isotopes Stable
¹³³Cs
Magnetic Type
Paramagnetic
Melting Point
301.7
K
Molar Volume
0.000070732
Oxidation States
-1,1c
Period
6
Phase
Solid
@ 22°C
Quantum Numbers
2S1/2
Radius (Covalent)
225
pm
32
Linear (pm)
225
Radius (Empirical)
260
pm
Radius (Van Der Waals)
—
Series
Alkali Metal
Valence Electrons
1
Wikipedia
https://en.wikipedia.org/wiki/Cesium
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2
3
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5
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7
N
Sy
Name
Radius (Covalent)
Radius (Covalent)
pm
32
Linear
225
Cell colors represent Radius (Covalent) –
Show Series Instead
Lanthanides
(All Group 3)
6
Actinides
(All Group 3)
7
1
H
Hydrogen
37
2
He
Helium
32
3
Li
Lithium
134
4
Be
Beryllium
90
5
B
Boron
82
6
C
Carbon
77
7
N
Nitrogen
75
8
O
Oxygen
73
9
F
Fluorine
71
10
Ne
Neon
69
11
Na
Sodium
154
12
Mg
Magnesium
130
13
Al
Aluminum
118
14
Si
Silicon
111
15
P
Phosphorus
106
16
S
Sulfur
102
17
Cl
Chlorine
99
18
Ar
Argon
97
19
K
Potassium
196
20
Ca
Calcium
174
21
Sc
Scandium
144
22
Ti
Titanium
136
23
V
Vanadium
125
24
Cr
Chromium
127
25
Mn
Manganese
139
26
Fe
Iron
125
27
Co
Cobalt
126
28
Ni
Nickel
121
29
Cu
Copper
138
30
Zn
Zinc
131
31
Ga
Gallium
126
32
Ge
Germanium
122
33
As
Arsenic
119
34
Se
Selenium
116
35
Br
Bromine
114
36
Kr
Krypton
110
37
Rb
Rubidium
211
38
Sr
Strontium
192
39
Y
Yttrium
162
40
Zr
Zirconium
148
41
Nb
Niobium
137
42
Mo
Molybdenum
145
43
Tc
Technetium
156
44
Ru
Ruthenium
126
45
Rh
Rhodium
135
46
Pd
Palladium
131
47
Ag
Silver
153
48
Cd
Cadmium
148
49
In
Indium
144
50
Sn
Tin
141
51
Sb
Antimony
138
52
Te
Tellurium
135
53
I
Iodine
133
54
Xe
Xenon
130
55
Cs
Cesium
225
56
Ba
Barium
198
57
La
Lanthanum
169
58
Ce
Cerium
59
Pr
Praseodymium
60
Nd
Neodymium
61
Pm
Promethium
62
Sm
Samarium
63
Eu
Europium
64
Gd
Gadolinium
65
Tb
Terbium
66
Dy
Dysprosium
67
Ho
Holmium
68
Er
Erbium
69
Tm
Thulium
70
Yb
Ytterbium
71
Lu
Lutetium
160
72
Hf
Hafnium
150
73
Ta
Tantalum
138
74
W
Tungsten
146
75
Re
Rhenium
159
76
Os
Osmium
128
77
Ir
Iridium
137
78
Pt
Platinum
128
79
Au
Gold
144
80
Hg
Mercury
149
81
Tl
Thallium
148
82
Pb
Lead
147
83
Bi
Bismuth
146
84
Po
Polonium
85
At
Astatine
86
Rn
Radon
145
87
Fr
Francium
88
Ra
Radium
89
Ac
Actinium
90
Th
Thorium
91
Pa
Protactinium
92
U
Uranium
93
Np
Neptunium
94
Pu
Plutonium
95
Am
Americium
96
Cm
Curium
97
Bk
Berkelium
98
Cf
Californium
99
Es
Einsteinium
100
Fm
Fermium
101
Md
Mendelevium
102
No
Nobelium
103
Lr
Lawrencium
104
Rf
Rutherfordium
105
Db
Dubnium
106
Sg
Seaborgium
107
Bh
Bohrium
108
Hs
Hassium
109
Mt
Meitnerium
110
Ds
Darmstadtium
111
Rg
Roentgenium
112
Cn
Copernicium
113
Nh
Nihonium
114
Fl
Flerovium
115
Mc
Moscovium
116
Lv
Livermorium
117
Ts
Tennessine
118
Og
Oganesson
Group
Period
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