Rubidium

aspect 37 of routine table is Rubidium through atomic number 37, atomic weight 85.4678. Rubidium, price Rb, has a Body centered Cubic structure and also Silver color. Rubidium is a alkali metal element. Trivial surname of Rubidium is alkali metals*. Recognize everything about Rubidium Facts, physics Properties, chemical Properties, digital configuration, Atomic and also Crystal Structure.


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Rubidium is a chemical facet with symbol Rb and atomic number 37. Rubidium is a soft, silvery-white metallic facet of the alkali steel group, v an atom mass of 85.4678. Element rubidium is very reactive, v properties similar to those of other alkali metals, together as an extremely rapid oxidation in air.

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Rubidium Facts

Read key information and facts around element Rubidium

surname Rubidium
atomic Number 37
atom Symbol Rb
Atomic weight 85.4678
step Solid
shade Silver
Classification alkali metal
group in routine Table 1
Group Name lithium household
period in routine Table 5
Block in regular Table s-block
Electronic Configuration 5s1
Melting point 39.31 °C
Boiling point 688 °C
Electronic shell Structure <2, 8, 18, 8, 1>
CAS Number CAS7440-17-7

community
19
K
20
Ca
37
Rb
38
Sr
55
Cs
56
Ba
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
1
H
2
He
2
3
Li
4
Be
5
B
6
C
7
N
8
O
9
F
10
Ne
3
11
Na
12
Mg
13
Al
14
Si
15
P
16
S
17
Cl
18
Ar
4
19
K
20
Ca
21
Sc
22
Ti
23
V
24
Cr
25
Mn
26
Fe
27
Co
28
Ni
29
Cu
30
Zn
31
Ga
32
Ge
33
As
34
Se
35
Br
36
Kr
5
37
Rb
38
Sr
39
Y
40
Zr
41
Nb
42
Mo
43
Tc
44
Ru
45
Rh
46
Pd
47
Ag
48
Cd
49
In
50
Sn
51
Sb
52
Te
53
I
54
Xe
6
55
Cs
56
Ba
72
Hf
73
Ta
74
W
75
Re
76
Os
77
Ir
78
Pt
79
Au
80
Hg
81
Tl
82
Pb
83
Bi
84
Po
85
At
86
Rn
7
87
Fr
88
Ra
104
Rf
105
Db
106
Sg
107
Bh
108
Hs
109
Mt
110
Ds
111
Rg
112
Cn
113
Nh
114
Fl
115
Mc
116
Lv
117
Ts
118
Og
Lanthanides
57
La
58
Ce
59
Pr
60
Nd
61
Pm
62
Sm
63
Eu
64
Gd
65
Tb
66
Dy
67
Ho
68
Er
69
Tm
70
Yb
71
Lu
Actinide
89
Ac
90
Th
91
Pa
92
U
93
Np
94
Pu
95
Am
96
Cm
97
Bk
98
Cf
99
Es
100
Fm
101
Md
102
No
103
Lr

discover our interactive periodic table


How to locate Rubidium on periodic Table

Periodic table is i ordered it by atom number, number of protons in the nucleus which is very same as number of electrons. The atomic number increases from left come right. Periodic table starts at height left ( atomic number 1) and also ends at bottom appropriate (atomic number 118). As such you can straight look for atomic number 37 to uncover Rubidium on routine table.

Another method to read periodic table and locate an aspect is by using team number (column) and period number (row). To situate Rubidium on periodic table look for cross section of group 1 and period 5 in the contemporary periodic table.

discover Interactive routine Table come Understand and also Learn Cool trends

Table of Contents


History
Abundance
Physical Properties
Thermal Properties
Crystal Structure
Atomic & orbital Properties
Chemical Properties
Isotopes
Health and Safety Parameters and Guidelines
Databases
Compare Rubidium with various other elements

Rubidium History

The element Rubidium was uncovered by Robert Bunsen in year 1861 in Germany . Rubidium acquired its name from the Latin rubidus, an interpretation "deep red"

Rubidium Presence: diversity in Nature and also Around Us

The table below shows the variety of Rubidium in Universe, Sun, Meteorites, Earth"s Crust, Oceans and also Human Body.

Ppb by load (1ppb =10^-7 %)
variety in world 1×10-6%
diversity in sun 3×10-6%
abundance in Meteorites 3.2e-06
Abundance in Earth"s crust 6e-05
diversity in seas 1.2e-07
diversity in human beings 4.6e-06

Crystal framework of Rubidium

The hard state framework of Rubidium is Body centered Cubic.

The decision structure deserve to be defined in regards to its unit Cell. The unit cells repeats itself in three dimensional room to kind the structure.

Unit cell Parameters

The unit cell is represented in regards to its lattice parameters, which space the lengths the the cabinet edges Lattice Constants (a, b and c)

a b c
558.5 558.5 558.5 pm

and the angles between them Lattice angles (alpha, beta and also gamma).

alpha beta gamma
π/2 π/2 π/2

The location of the atoms within the unit cabinet are explained by the set of atomic positions ( xi, yi, zi) measured indigenous a recommendation lattice point.

The symmetry nature of the crystal are explained by the principle of an are groups. All possible symmetric kinds of particles in three-dimensional an are are explained by the 230 room groups (219 unique types, or 230 if chiral duplicates are taken into consideration distinct.

an are Group surname Im_ 3m
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an are Group Number 229
Crystal framework Body focused Cubic

Rubidium Atomic and Orbital Properties

Rubidium atoms have actually 37 electrons and also the electronic shell framework is <2, 8, 18, 8, 1> through Atomic term Symbol (Quantum Numbers) 2S1/2.


atomic Number 37
Number of electron (with no charge) 37
Number the Protons 37
Mass Number 85
Number of Neutrons 48
Shell structure (Electrons per energy level) <2, 8, 18, 8, 1>
Electron configuration 5s1
Valence Electrons 5s1
Oxidation State -1 1
Atomic hatchet Symbol (Quantum Numbers) 2S1/2

Shell framework of Rubidium - electrons per power level


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Ground State electronic Configuration the Rubidium - neutral Rubidium atom

The floor state electronic configuration that Neutral Rubidium atom is 5s1. The section of Rubidium configuration the is indistinguishable to the noble gas of the coming before period, is abbreviated together . Because that atoms with countless electrons, this notation can become an extensive and for this reason an abbreviation notation is used.This is crucial as it is the Valence electrons 5s1, electron in the outermost covering that determine the chemistry properties the the element.

See more: Difference Between Saturated Unsaturated And Supersaturated, Types Of Saturation

Unabbreviated electronic configuration of neutral Rubidium

Complete ground state digital configuration for the Rubidium atom, Unabbreviated digital configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 5s1

Atomic framework of Rubidium

Rubidium atom radius is 265 pm, while it"s covalent radius is 211 pm.

atom Radius

265 afternoon (2.65 Å)

Atomic Volume 55.788381201 cm3
Covalent Radius 211 pm (2.11 Å)
van der Waals Radius N/A
spirit Cross ar 0.38 σa/barns

Atomic Spectrum of Rubidium

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Rubidium chemistry Properties: Rubidium Ionization Energies and electron affinity

The electron affinity the Rubidium is 46.9 kJ/mol

Valence 1
Electronegativity 0.82
ElectronAffinity 46.9 kJ/mol

Ionization energy of Rubidium

Refer come table below for Ionization energies that Rubidium

Ionization power number Enthalpy - kJ/mol
1 403
2 2633
3 3860
4 5080
5 6850
6 8140
7 9570
8 13120
9 1.45×104
10 26740

Rubidium physical Properties

Refer to below table because that Rubidium physical Properties

thickness 1.532 g/cm3
Molar Volume 55.788381201 cm3

Elastic Properties

Young Modulus 2.4 GPa
Shear Modulus N/A
bulk Modulus 2.5 GPa
Poisson ratio N/A

Hardness that Rubidium - exam to measure up of Hardness the Element

Mohs Hardness 0.3 MPa
Vickers Hardness N/A
Brinell Hardness 0.216 MPa

Rubidium electrical Properties

Rubidium is Conductor of electricity. Refer to table below for the electrical properties of Rubidium

electric Conductivity 8.3×106 S/m
Resistivity 1.2×10-7 m Ω
Superconducting suggest N/A

Rubidium Heat and also Conduction Properties

heat Conductivity 58 W/(m K)
Thermal development N/A

Rubidium Magnetic Properties

Magnetic type Paramagnetic
Curie allude N/A
massive Magnetic Susceptibility 2.6×10-9
Molar Magnetic Susceptibility 2.22×10-10
Volume Magnetic Susceptibility 3.98×10-6

Optical properties of Rubidium

Refractive table of contents N/A

Acoustic properties of Rubidium

speed of Sound 1.3×103 m/s

Rubidium thermal Properties - Enthalpies and also thermodynamics

Refer come table below for thermal properties that Rubidium

Melting suggest 312.46 K (39.31 °C)
Boiling allude 961 K (688 °C)
crucial Temperature 2093 K
Superconducting allude N/A

Enthalpies that Rubidium

warm of combination 2.19 kJ/mol
warm of Vaporization 72 kJ/mol
heat of combustion N/A

Rubidium isotopes - nuclear Properties of Rubidium

Isotopes that rhodium. Naturally occurring Rubidium has actually 1 stable isotope - 85Rb.


Isotope Isotope fixed % diversity T fifty percent Decay setting
71Rb
72Rb
73Rb
74Rb
75Rb
76Rb
77Rb
78Rb
79Rb
80Rb
81Rb
82Rb
83Rb
84Rb
85Rb 72.17% steady N/A
86Rb
87Rb 27.83%
88Rb
89Rb
90Rb
91Rb
92Rb
93Rb
94Rb
95Rb
96Rb
97Rb
98Rb
99Rb
100Rb
101Rb
102Rb

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number CAS7440-17-7
RTECS Number RTECSVL8500000
dot Hazard course 4.3
period Numbers 1423
EU Number N/A
NFPA Fire Rating 3
NFPA dangers Water Reactive
NFPA health and wellness Rating 2
NFPA Reactivity Rating N/A
Autoignition suggest N/A
Flashpoint N/A

Database Search

list of distinctive identifiers to search the element in various chemical registry databases

Database id number
CAS Number - chemistry Abstracts service (CAS) CAS7440-17-7
CID Number CID5357696
Gmelin Number N/A
NSC Number N/A
RTECS Number RTECSVL8500000

Compare Rubidium through all Group 1 elements

Rubidium vs Hydrogen Rubidium vs Lithium Rubidium vs salt Rubidium vs Potassium Rubidium vs Cesium Rubidium vs Francium

Compare Rubidium through all alkali metal elements

Rubidium vs Lithium Rubidium vs salt Rubidium vs Potassium Rubidium vs Cesium Rubidium vs Francium