Elements
75

Re

Rhenium

Rhenium (Re) is a silvery-white coloured metal that has the atomic number 75 in the periodic table. It is a Transition metal in Group 7. It has the symbol Re.

Rhenium was discovered in 1925 by Walter and Ida Noddack with the help of Otto Berg. It was named after the river Rhine in Germany. It was one of the last elements to be discovered that had a stable isotope at such a large size. Most of the ores mined for Rhenium come from Chile and it is a very rare metal. One Kilo of Rhenium can cost upwards of 4500 USD. Its most common use is in producing jet engines due to its high melting and boiling point. It is a solid metal at room temperature with a melting point of 3185°c and a boiling point of 5597°c.

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FAQ's

What is the Melting Point for Rhenium?

Rhenium has a Melting Point of 3180°F, meaning at 3180°F it will turn to a liquid.

What is the Boiling Point for Rhenium?

Rhenium has a Boiling Point of 5627°F, meaning at 5627°F it will turn to a Gas.

What is the Electronegativity of Rhenium?

Rhenium's Electronegativty is 1.9. Electronegativity is a measure of how strongly atoms attract bonding electrons to themselves.

What is the Heat of Vaporization of Rhenium?

Rhenium has a Heat of Vaporization of 715 kJ/mol.

Uses

Mixed with tungsten or platinum to make filaments for mass spectrographs. Its main value is as a trace alloying agent for hardening metal components that are subjected to continuous frictional forces.

Sources

Found in small amounts in gadolinite and molybdenite. Has a very high melting point.

75
Protons
75
Electrons
111
Neutrons

Re

Element Symbol
Re
Atomic Weight
186.207
Atomic Number
75
State
Solid
Melting Point
Unknown
3180
°C
Boiling Point
5627
Unknown
°C
Heat of Vaporization
715
Unknown
kJ/mol
Crystal Structure
Hexagonal
Thermoconductivity
0.479
Unknown
W/cmK
Shells
2,8,18,32,13,2
Group
Transition Metal
Period
6
Block
D Block
Orbitals
[Xe] 4f14 5d5 6s2
Coefficient of Thermal Expansion
6.2 10^-6 K^-1
Covalent Radius
1.28 Å
Density at 293K
21.0 g/cm³
Electrical Conductivity
0.0542 10^6/cm ohm
First Ionization Potential
7.88 V
Second Ionization Potential
--
Third Ionization Potential
--
Ionic Radius
.53 (+7) Å
Oxydation States
(7),6,4,2,-1
Lattice Parameter
2.760 Å
Lattice Parameter 2
--
Lattice Parameter 3
--
Pronounced

REE-ni-em

Discovered by

Walter Noddack, Ida Tacke, Otto Berg

Discovery date

1925

Orbital configuration
2,8,18,32,13,2

Download the Periodic Table

Explore Other Transition Metals

50.942
23

V

Vanadium
178.49
72

Hf

Hafnium
285
112

Cn

Copernicium
65.38
30

Zn

Zinc
101.07
44

Ru

Ruthenium
196.967
79

Au

Gold
95.95
42

Mo

Molybdenum
180.948
73

Ta

Tantalum
97
43

Tc

Technetium
88.906
39

Y

Yttrium
270
108

Hs

Hassium
183.84
74

W

Tungsten
270
107

Bh

Bohrium
112.414
48

Cd

Cadmium
58.933
27

Co

Cobalt
47.867
22

Ti

Titanium
190.23
76

Os

Osmium
106.42
46

Pd

Palladium
51.996
24

Cr

Chromium
92.906
41

Nb

Niobium
54.938
25

Mn

Manganese
107.868
47

Ag

Silver
269
106

Sg

Seaborgium
270
105

Db

Dubnium
44.956
21

Sc

Scandium
63.546
29

Cu

Copper
200.592
80

Hg

Mercury
102.905
45

Rh

Rhodium
91.224
40

Zr

Zirconium
58.693
28

Ni

Nickel
195.084
78

Pt

Platinum
267
104

Rf

Rutherfordium
192.217
77

Ir

Iridium
55.845
26

Fe

Iron
Transition metal is any of various chemical elements that have valence electrons (electrons that can participate in the formation of chemical bond) in two shells instead of only one. They form group 3 (IIIb) through group 12 (IIb).
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