Rhenium Element (Periodic Table)

Rhenium

Rhenium (Re) is a chemical element of the periodic table, located in the group 7 and the period 6, and has the atomic number 75. It is a rare, lustrous, silvery-white transition metal, whose name comes from the Latin word “Rhenus”, which means the Rhine. It has the highest melting point and boiling point of all metals.

group
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
period
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
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
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
– d block

FAQs on Rhenium Element

Rhenium
‣ What does rhenium look like?

Appearance: silvery-greyish
‣ Who discovered rhenium? When was the element rhenium discovered?

Discovery: Walter Noddack, Ida Noddack, Otto Berg (1925)
First isolation: Walter Noddack, Ida Noddack (1928)
‣ Where is rhenium on the periodic table?

Rhenium Periodic Table

Location: Rhenium is found in the seventh column of the periodic table, next to the tungsten element.
‣ What is rhenium’s atomic number?

Atomic number (Z): 75
‣ What’s the symbol for rhenium?

Symbol: Re
Rhenium atomic weight: 186.207
‣ What block does rhenium belong to?

Block: d-block
‣ Rhenium is in what group on the periodic table?

Group: 7
‣ What period is rhenium on the periodic table?

Period: 6
‣ What is the atomic radius of rhenium?

Atomic radius: empirical: 137 pm
Rhenium covalent radius: 151±7 pm
‣ What is the melting point of rhenium?

Melting point: 3459 K (3186 °C, 5767 °F)
‣ What is the boiling point of rhenium?

Boiling point: 5903 K (5630 °C, 10,170 °F)
‣ How many shells does rhenium have?

Electrons per shell: 2, 8, 18, 32, 13, 2
‣ What is the electron configuration of rhenium?

Electron configuration: [Xe] 4f14 5d5 6s2
Rhenium ionization energies:
1st: 760 kJ/mol
2nd: 1260 kJ/mol
3rd: 2510 kJ/mol
‣ What is the phase of rhenium?

Phase (at r.t): solid
Rhenium density (near r.t): 21.02 g/cm3
when liquid (at m.p): 18.9 g/cm3
Rhenium magnetic ordering: paramagnetic
Rhenium natural occurrence: primordial
‣ What is the oxidation state of rhenium?

Oxidation state: +1, +2, +3, +4, +5, +6, +7
‣ What’s the electronegativity of rhenium?

Electronegativity: Pauling scale: 1.9
Rhenium poisson’s ratio: 0.30
Rhenium heat of fusion: 60.43 kJ/mol
Rhenium heat of vaporization: 704 kJ/mol
Rhenium molar heat capacity: 25.48 J/(mol K)
Rhenium molar magnetic susceptibility: +67.6 × 10-6 cm3/mol (293 K)
Speed of sound in rhenium: 4700 m/s (at 20 °C)
‣ What is the crystal structure of rhenium?

Crystal structure: hexagonal close-packed (hcp)
Thermal expansion of rhenium: 6.2 µm/(m.K)
Thermal conductivity of rhenium: 48.0 W/(m.K)
Rhenium electrical resistivity: 193 nΩ.m (at 20 °C)
‣ Rhenium hardness

Mohs hardness: 7.0
Vickers hardness: 1350-7850 MPa
Brinell hardness: 1320-2500 MPa
Young’s modulus of rhenium: 463 GPa
Shear modulus of rhenium: 178 GPa
Bulk modulus of rhenium: 370 GPa
Rhenium CAS number: 7440-15-5

‣ Rhenium vapor pressure

Vapor pressure
P (Pa)1101001 k10 k100 k
at T (K)330336144009450051275954

‣ How many isotopes does rhenium have?

Main isotopes of rhenium
IsotopeAbundanceHalf-life (t1/2)Decay modeProduct
185Re37.4 %stable
187Re62.6 %4.12 × 1010 yβ187Os

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