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Periodic Table Element Comparison: Compare Elements - Rubidium vs Lithium

Compare Rubidium and Lithium

Compare Rubidium and Lithium on the basis of their properties, attributes and periodic table facts. Compare elements on more than 90 properties. All the elements of similar categories show a lot of similarities and differences in their chemical, atomic, physical properties and uses. These similarities and dissimilarities should be known while we study periodic table elements. You can study the detailed comparison between Rubidium vs Lithium with most reliable information about their properties, attributes, facts, uses etc. You can compare Rb vs Li on more than 90 properties like electronegativity , oxidation state, atomic shells, orbital structure, Electronaffinity, physical states, electrical conductivity and many more.

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1
1
H
Hydrogen
1.008

Atomic #

Electronic Shell #

Symbol
Name
Atomic Weight
HGas
HgLiquid
CSolid
Metals
Metalloids
NonMetals
Alkali metals
Alkali earth metals
Lanthanoids
Transition metals
Post-transition metals
Other nonmetals
Halogens
Nobel gas
Actinoids
2
He
Helium
4.003
2
3
Li
Lithium
6.941
4
Be
Beryllium
9.012
5
B
Boron
10.811
6
C
Carbon
12.011
7
N
Nitrogen
14.007
8
O
Oxygen
15.999
9
F
Fluorine
18.998
10
Ne
Neon
20.180
3
11
Na
Sodium
22.990
12
Mg
Magnesium
24.305
13
Al
Aluminium
26.982
14
Si
Silicon
28.085
15
P
Phosphorus
30.974
16
S
Sulfur
32.065
17
Cl
Chlorine
35.453
18
Ar
Argon
39.948
4
19
K
Potassium
39.098
20
Ca
Calcium
40.078
21
Sc
Scandium
44.956
22
Ti
Titanium
47.867
23
V
Vanadium
50.941
24
Cr
Chromium
51.996
25
Mn
Manganese
54.938
26
Fe
Iron
55.845
27
Co
Cobalt
58.933
28
Ni
Nickel
58.693
29
Cu
Copper
63.546
30
Zn
Zinc
65.409
31
Ga
Gallium
69.723
32
Ge
Germanium
72.640
33
As
Arsenic
74.922
34
Se
Selenium
78.960
35
Br
Bromine
79.904
36
Kr
Krypton
83.798
5
37
Rb
Rubidium
85.468
38
Sr
Strontium
87.620
39
Y
Yttrium
88.906
40
Zr
Zirconium
91.224
41
Nb
Niobium
92.906
42
Mo
Molybdenum
95.940
43
Tc
Technetium
98
44
Ru
Ruthenium
101.070
45
Rh
Rhodium
102.906
46
Pd
Palladium
106.420
47
Ag
Silver
107.868
48
Cd
Cadmium
112.411
49
In
Indium
114.818
50
Sn
Tin
118.710
51
Sb
Antimony
121.760
52
Te
Tellurium
127.600
53
I
Iodine
126.904
54
Xe
Xenon
131.293
6
55
Cs
Cesium
132.905
56
Ba
Barium
137.327
57 - 71
La - Lu
Lanthanides
72
Hf
Hafnium
178.490
73
Ta
Tantalum
180.948
74
W
Tungsten
183.840
75
Re
Rhenium
186.207
76
Os
Osmium
190.230
77
Ir
Iridium
192.217
78
Pt
Platinum
195.078
79
Au
Gold
196.967
80
Hg
Mercury
200.590
81
Tl
Thallium
204.383
82
Pb
Lead
207.200
83
Bi
Bismuth
208.980
84
Po
Polonium
209
85
At
Astatine
210
86
Rn
Radon
222
7
87
Fr
Francium
223
88
Ra
Radium
226
89 - 103
Ac - Lr
Actinides
104
Rf
Rutherfordium
261
105
Db
Dubnium
262
106
Sg
Seaborgium
266
107
Bh
Bohrium
264
108
Hs
Hassium
269
109
Mt
Meitnerium
268
110
Ds
Darmstadtium
281
111
Rg
Roentgenium
272
112
Cn
Copernicium
285
113
Nh
Nihonium
284
114
Fl
Flerovium
289
115
Mc
Moscovium
288
116
Lv
Livermorium
292
117
Ts
Tennessine
294
118
Og
Oganesson
294
Lanthanides
57
La
Lanthanum
138.905
58
Ce
Cerium
140.116
59
Pr
Praseodymium
140.908
60
Nd
Neodymium
144.240
61
Pm
Promethium
145
62
Sm
Samarium
150.360
63
Eu
Europium
151.964
64
Gd
Gadolinium
157.250
65
Tb
Terbium
158.925
66
Dy
Dysprosium
162.500
67
Ho
Holmium
164.930
68
Er
Erbium
167.259
69
Tm
Thulium
168.934
70
Yb
Ytterbium
173.040
71
Lu
Lutetium
174.967
Actinides
89
Ac
Actinium
227
90
Th
Thorium
232.038
91
Pa
Protactinium
231.036
92
U
Uranium
238.029
93
Np
Neptunium
237
94
Pu
Plutonium
244
95
Am
Americium
243
96
Cm
Curium
247
97
Bk
Berkelium
247
98
Cf
Californium
251
99
Es
Einsteinium
252
100
Fm
Fermium
257
101
Md
Mendelevium
258
102
No
Nobelium
259
103
Lr
Lawrencium
262

Facts

NameRubidiumLithium
Atomic Number373
Atomic SymbolRbLi
Atomic Weight85.4678 6.941
Phase at STPSolid Solid
ColorSilver Silver
Metallic ClassificationAlkali Metal Alkali Metal
Group in Periodic Tablegroup 1 group 1
Group Namelithium familylithium family
Period in Periodic Tableperiod 5 period 2
Block in Periodic Tables -blocks -block
Electronic Configuration[Kr] 5s1 [He] 2s1
Electronic Shell Structure (Electrons per shell)2, 8, 18, 8, 12, 1
Melting Point312.46 K453.69 K
Boiling Point961 K1615 K
CAS NumberCAS7440-17-7 CAS7439-93-2
Neighborhood ElementsNeighborhood Elements of RubidiumNeighborhood Elements of Lithium

History

NameRubidiumLithium
HistoryThe element Rubidium was discovered by R. Bunsen and G. R. Kirchhoff in year 1861 in Germany. Rubidium derived its name from the Latin rubidus, meaning 'deep red'.The element Lithium was discovered by A. Arfwedson in year 1817 in Sweden. Lithium derived its name the Greek word lithos, meaning 'stone'.
DiscoveryR. Bunsen and G. R. Kirchhoff (1861)A. Arfwedson (1817)
IsolatedHevesy ()W. T. Brande (1821)

Presence: Abundance in Nature and Around Us

Parts per billion (ppb) by weight / by atoms (1ppb =10^-7 %)

NameRubidiumLithium
Abundance in Universe10 / 0.16 / 1
Abundance in Sun30 / 0.40.06 / 0.01
Abundance in Meteorites3300 / 7701700 / 4600
Abundance in Earth's Crust60000 / 1400017000 / 50000
Abundance in Oceans120 / 8.7180 / 160
Abundance in Humans4600 / 34030 / 27

Crystal Structure and Atomic Structure

NameRubidiumLithium
Atomic Volume55.788 cm3/mol13.02 cm3/mol
Atomic Radius265 pm167 pm
Covalent Radius211 pm134 pm
Van der Waals Radius303 pm182 pm
Atomic Spectrum - Spectral Lines
Emission SpectrumEmission Spectrum of Rubidium | SchoolMyKidsEmission Spectrum of Lithium | SchoolMyKids
Absorption SpectrumAbsorption Spectrum of Rubidium | SchoolMyKidsAbsorption Spectrum of Lithium | SchoolMyKids
Lattice Constant558.5, 558.5, 558.5 pm351, 351, 351 pm
Lattice Angleπ/2, π/2, π/2π/2, π/2, π/2
Space Group NameIm_ 3m Im_ 3m
Space Group Number229 229
Crystal Structure

Body Centered Cubic

37 Rb Rubidium - Crystal Structure | SchoolMyKids

Body Centered Cubic

3 Li Lithium - Crystal Structure | SchoolMyKids

Atomic and Orbital Properties

NameRubidiumLithium
Atomic Number373
Number of Electrons (with no charge)373
Number of Protons373
Mass Number85.46786.941
Number of Neutrons484
Shell structure (Electrons per energy level)2, 8, 18, 8, 12, 1
Electron Configuration[Kr] 5s1 [He] 2s1
Valence Electrons5s1 2s1
Oxidation State11
Atomic Term Symbol (Quantum Numbers)2S1/2 2S1/2
Shell structure37 Rb Rubidium Electron Shell Structure | SchoolMyKids3 Li Lithium Electron Shell Structure | SchoolMyKids

Isotopes and Nuclear Properties

Rubidium has 1 stable naturally occuring isotopes while Lithium has 2 stable naturally occuring isotopes.

NameRubidiumLithium
Known Isotopes71Rb, 72Rb, 73Rb, 74Rb, 75Rb, 76Rb, 77Rb, 78Rb, 79Rb, 80Rb, 81Rb, 82Rb, 83Rb, 84Rb, 85Rb, 86Rb, 87Rb, 88Rb, 89Rb, 90Rb, 91Rb, 92Rb, 93Rb, 94Rb, 95Rb, 96Rb, 97Rb, 98Rb, 99Rb, 100Rb, 101Rb, 102Rb3Li, 4Li, 5Li, 6Li, 7Li, 8Li, 9Li, 10Li, 11Li, 12Li
Stable IsotopesNaturally occurring stable isotopes:

85Rb

Naturally occurring stable isotopes:

6Li, 7Li

Neutron Cross Section 0.38 0.045
Neutron Mass Absorption 0.0003 -

Chemical Properties: Ionization Energies and electron affinity

NameRubidiumLithium
Valence or Valency1 1
Electronegativity0.82 Pauling Scale0.98 Pauling Scale
Electron Affinity46.9 kJ/mol59.6 kJ/mol
Ionization Energies
1st: 403 kJ/mol
2nd: 2633 kJ/mol
3rd: 3860 kJ/mol
4th: 5080 kJ/mol
5th: 6850 kJ/mol
6th: 8140 kJ/mol
7th: 9570 kJ/mol
8th: 13120 kJ/mol
9th: 14500 kJ/mol
10th: 26740 kJ/mol
1st: 520.2 kJ/mol
2nd: 7298.1 kJ/mol
3rd: 11815 kJ/mol

Physical Properties

NameRubidiumLithium
Density1.532 g/cm30.535 g/cm3
Molar Volume55.788 cm3/mol13.02 cm3/mol

Elastic Properties

Young Modulus2.4 4.9
Shear Modulus- 4.2 GPa
Bulk Modulus2.5 GPa11 GPa
Poisson Ratio- -

Hardness - Tests to Measure of Hardness of Element

Mohs Hardness0.3 MPa0.6 MPa
Vickers Hardness- -
Brinell Hardness0.216 MPa-

Electrical Properties

Electrical Conductivity8300000 S/m11000000 S/m
Resistivity 1.2e-7 m Ω9.4e-8 m Ω
Superconducting Point- -

Heat and Conduction Properties

Thermal Conductivity58 W/(m K)85 W/(m K)
Thermal Expansion- 0.000046 /K

Magnetic Properties

Magnetic TypeParamagnetic Paramagnetic
Curie Point- -
Mass Magnetic Susceptibility2.6e-9 m3/kg2.56e-8 m3/kg
Molar Magnetic Susceptibility2.22e-10 m3/mol1.78e-10 m3/mol
Volume Magnetic Susceptibility0.00000398 0.00000137

Optical Properties

Refractive Index- -

Acoustic Properties

Speed of Sound1300 m/s6000 m/s

Thermal Properties - Enthalpies and thermodynamics

NameRubidiumLithium
Melting Point312.46 K453.69 K
Boiling Point961 K1615 K
Critical Temperature2093 K3223 K
Superconducting Point- -

Enthalpies

Heat of Fusion2.19 kJ/mol3 kJ/mol
Heat of Vaporization72 kJ/mol147 kJ/mol
Heat of Combustion- -298 J/(kg K)

Regulatory and Health - Health and Safety Parameters and Guidelines

NameRubidiumLithium
CAS NumberCAS7440-17-7 CAS7439-93-2
RTECS NumberRTECSVL8500000 RTECSOJ5540000
DOT Hazard Class4.3 4.3
DOT Numbers1423 1415
EU Number- -
NFPA Fire Rating3 2
NFPA Health Rating2 3
NFPA Reactivity Rating- 2
NFPA HazardsWater Reactive Water Reactive
AutoIgnition Point- 179 °C
Flashpoint- -

Compare With Other Elements

Compare Rubidium with all Group 1 elements

Compare Rubidium with all Period 5 elements

Compare Rubidium with all Alkali Metal elements

Compare Lithium with all Group 1 elements

Compare Lithium with all Period 2 elements

Compare Lithium with all Alkali Metal elements