Re Rhenium – Element Information, Facts, Properties, Trends,Uses, Comparison with other elements

75
Re
Rhenium

Rhenium

Element 75 of Periodic table is Rhenium with atomic number 75, atomic weight 186.207. Rhenium, symbol Re, has a Simple Hexagonal structure and Gray color. Rhenium is a transition metal element. Know everything about Rhenium Facts, Physical Properties, Chemical Properties, Electronic configuration, Atomic and Crystal Structure.

75 Re - Rhenium | SchoolMyKids

Rhenium is a chemical element with symbol Re and atomic number 75. It is a silvery-white, heavy, third-row transition metal in group 7 of the periodic table. With an estimated average concentration of 1 part per billion (ppb), rhenium is one of the rarest elements in the Earth's crust.

How to Locate Rhenium on Periodic Table

Periodic table is arranged by atomic number, number of protons in the nucleus which is same as number of electrons. The atomic number increases from left to right. Periodic table starts at top left ( Atomic number 1) and ends at bottom right (atomic number 118). Therefore you can directly look for atomic number 75 to find Rhenium on periodic table.

Another way to read periodic table and locate an element is by using group number (column) and period number (row). To locate Rhenium on periodic table look for cross section of group 7 and period 6 in the modern periodic table.

Table of Contents

Rhenium History

The element Rhenium was discovered by Masataka Ogawa in year 1925 in Germany . Rhenium derived its name from Rhenus, the Latin name for the river Rhine

Rhenium Presence: Abundance in Nature and Around Us

The table below shows the abundance of Rhenium in Universe, Sun, Meteorites, Earth's Crust, Oceans and Human Body.

  Ppb by weight (1ppb =10^-7 %)
Abundance in Universe 2×10-8%
Abundance in Sun 1×10-8%
Abundance in Meteorites 4.9×10-6%
Abundance in Earth's Crust 2.6×10-7%
Abundance in Oceans 1×10-10%
Abundance in Humans N/A

Crystal Structure of Rhenium

The solid state structure of Rhenium is Simple Hexagonal.

The Crystal structure can be described in terms of its unit Cell. The unit Cells repeats itself in three dimensional space to form the structure.

Unit Cell Parameters

The unit cell is represented in terms of its lattice parameters, which are the lengths of the cell edges Lattice Constants (a, b and c)

a b c
276.1 276.1 445.6 pm

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

alpha beta gamma
π/2 π/2 2 π/3

The positions of the atoms inside the unit cell are described by the set of atomic positions ( xi, yi, zi) measured from a reference lattice point.

The symmetry properties of the crystal are described by the concept of space groups. All possible symmetric arrangements of particles in three-dimensional space are described by the 230 space groups (219 distinct types, or 230 if chiral copies are considered distinct.

Space Group Name P63/mmc 75 Re Rhenium - Crystal Structure | SchoolMyKids
Space Group Number 194
Crystal Structure Simple Hexagonal

Rhenium Atomic and Orbital Properties

Rhenium atoms have 75 electrons and the electronic shell structure is [2, 8, 18, 32, 13, 2] with Atomic Term Symbol (Quantum Numbers) 6S5/2.

Atomic Number 75
Number of Electrons (with no charge) 75
Number of Protons 75
Mass Number 186
Number of Neutrons 111
Shell structure (Electrons per energy level) [2, 8, 18, 32, 13, 2]
Electron Configuration [Xe] 4f14 5d5 6s2
Valence Electrons 5d5 6s2
Oxidation State -3;-1
1;2;3;4;5;6;7
Atomic Term Symbol (Quantum Numbers) 6S5/2

Shell Structure of Rhenium - Electrons per energy level

75 Re Rhenium - Electron Shell Structure | SchoolMyKids
n s p d f
1 K 2
2 L 2 6
3 M 2 6 10
4 N 2 6 10 14
5 O 2 6 5
6 P 2

Ground State Electronic Configuration of Rhenium - neutral Rhenium atom

The ground state electronic configuration of Neutral Rhenium atom is [Xe] 4f14 5d5 6s2. The portion of Rhenium configuration that is equivalent to the noble gas of the preceding period, is abbreviated as [Xe]. For atoms with many electrons, this notation can become lengthy and so an abbreviated notation is used.This is important as it is the Valence electrons 4f14 5d5 6s2, electrons in the outermost shell that determine the chemical properties of the element.

Unabbreviated electronic configuration of neutral Rhenium

Complete ground state electronic configuration for the Rhenium atom, Unabbreviated electronic configuration

1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d5 6s2

Atomic Structure of Rhenium

Rhenium atomic radius is 188 pm, while it's covalent radius is 159 pm.

Atomic Radius

188 pm (1.88 Å)

Atomic Volume 8.85856327307 cm3
Covalent Radius 159 pm (1.59 Å)
Van der Waals Radius N/A
Neutron Cross Section 90 σa/barns

Atomic Spectrum of Rhenium

Atomic Spectrum of Rhenium | SchoolMyKids

Rhenium Chemical Properties: Rhenium Ionization Energies and electron affinity

The electron affinity of Rhenium is 14.5 kJ/mol

Valence 7
Electronegativity 1.9
ElectronAffinity 14.5 kJ/mol

Ionization Energy of Rhenium

Refer to table below for Ionization energies of Rhenium

Ionization energy number Enthalpy - kJ/mol
1 760
2 1260
3 2510
4 3640

Rhenium Physical Properties

Refer to below table for Rhenium Physical Properties

Density 21.02 g/cm3
Molar Volume 8.85856327307 cm3

Elastic Properties

Young Modulus 463 GPa
Shear Modulus 178 GPa
Bulk Modulus 370 GPa
Poisson Ratio 0.3

Hardness of Rhenium - Tests to Measure of Hardness of Element

Mohs Hardness 7 MPa
Vickers Hardness 2450 MPa
Brinell Hardness 1320 MPa

Rhenium Electrical Properties

Rhenium is Conductor of electricity. Refer to table below for the Electrical properties of Rhenium

Electrical Conductivity 5.6×106 S/m
Resistivity 1.8×10-7 m Ω
Superconducting Point 1.7

Rhenium Heat and Conduction Properties

Thermal Conductivity 48 W/(m K)
Thermal Expansion 6.2×10-6 K-1

Rhenium Magnetic Properties

Magnetic Type Paramagnetic
Curie Point N/A
Mass Magnetic Susceptibility 4.56×10-9
Molar Magnetic Susceptibility 8.49×10-10
Volume Magnetic Susceptibility 9.59e-05

Optical Properties of Rhenium

Refractive Index N/A

Acoustic Properties of Rhenium

Speed of Sound 4.7×103 m/s

Rhenium Thermal Properties - Enthalpies and thermodynamics

Refer to table below for Thermal properties of Rhenium

Melting Point 3459 K (3186 °C)
Boiling Point 5869 K (5596 °C)
Critical Temperature N/A
Superconducting Point 1.7

Enthalpies of Rhenium

Heat of Fusion 33 kJ/mol
Heat of Vaporization 705 kJ/mol
Heat of Combustion N/A

Rhenium Isotopes - Nuclear Properties of Rhenium

Isotopes of rhodium. Naturally occurring Rhenium has 1 stable isotope - 185Re.

Isotope Isotope Mass % Abundance T half Decay Mode
160Re  
161Re  
162Re  
163Re  
164Re  
165Re  
166Re  
167Re  
168Re  
169Re  
170Re  
171Re  
172Re  
173Re  
174Re  
175Re  
176Re  
177Re  
178Re  
179Re  
180Re  
181Re  
182Re  
183Re  
184Re  
185Re   37.4% Stable N/A
186Re  
187Re   62.6%
188Re  
189Re  
190Re  
191Re  
192Re  
193Re  
194Re  

Regulatory and Health - Health and Safety Parameters and Guidelines

CAS Number CAS7440-15-5
RTECS Number RTECSVI0780000
DOT Hazard Class N/A
DOT Numbers N/A
EU Number N/A
NFPA Fire Rating N/A
NFPA Hazards N/A
NFPA Health Rating N/A
NFPA Reactivity Rating N/A
Autoignition Point N/A
Flashpoint N/A

Database Search

List of unique identifiers to search the element in various chemical registry databases

Database Identifier number
CAS Number - Chemical Abstracts Service (CAS) CAS7440-15-5
CID Number CID23947
Gmelin Number N/A
NSC Number N/A
RTECS Number RTECSVI0780000

List of Elements
1 H - Hydrogen
2 He - Helium
3 Li - Lithium
4 Be - Beryllium
5 B - Boron
6 C - Carbon
7 N - Nitrogen
8 O - Oxygen
9 F - Fluorine
10 Ne - Neon
11 Na - Sodium
12 Mg - Magnesium
13 Al - Aluminium
14 Si - Silicon
15 P - Phosphorus
16 S - Sulfur
17 Cl - Chlorine
18 Ar - Argon
19 K - Potassium
20 Ca - Calcium
21 Sc - Scandium
22 Ti - Titanium
23 V - Vanadium
24 Cr - Chromium
25 Mn - Manganese
26 Fe - Iron
27 Co - Cobalt
28 Ni - Nickel
29 Cu - Copper
30 Zn - Zinc
31 Ga - Gallium
32 Ge - Germanium
33 As - Arsenic
34 Se - Selenium
35 Br - Bromine
36 Kr - Krypton
37 Rb - Rubidium
38 Sr - Strontium
39 Y - Yttrium
40 Zr - Zirconium
41 Nb - Niobium
42 Mo - Molybdenum
43 Tc - Technetium
44 Ru - Ruthenium
45 Rh - Rhodium
46 Pd - Palladium
47 Ag - Silver
48 Cd - Cadmium
49 In - Indium
50 Sn - Tin
51 Sb - Antimony
52 Te - Tellurium
53 I - Iodine
54 Xe - Xenon
55 Cs - Cesium
56 Ba - Barium
57 La - Lanthanum
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
72 Hf - Hafnium
73 Ta - Tantalum
74 W - Tungsten
75 Re - Rhenium
76 Os - Osmium
77 Ir - Iridium
78 Pt - Platinum
79 Au - Gold
80 Hg - Mercury
81 Tl - Thallium
82 Pb - Lead
83 Bi - Bismuth
84 Po - Polonium
85 At - Astatine
86 Rn - Radon
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
Metalloid
Nonmetals
Other Nonmetals
Halogens Noble Gas
Metals
Alkali Metals Alkaline Earth Metals
Transition Metals Post-Transition Metals
Lanthanide Actinide