Rhenium 75

Atomic No. Order:

Alphabetic Order:

Periodic Table

2, 8, 18, 32,

13, 2

Mn
25

Tc
43

Re
75

Bh
107

Ups
157

Bns
207

Rhenium

Symbol

Atomic Number

Relative Atomic Mass
¹²C = 12.0000

186.207

Atomic Radius pm

137

First Ionisation Energy
kJ mol ^-1

760

Electronegativity

1.9

Density
kg m ^-3

21020 [293 K]
18900 [l., m.p.]

Molar Volume cm3

8.86

Thermal Conductivity
W m ^-1 K ^-1

47.9 [300 K]

Melting Point K

3453

Boiling Point K

5900

Number of Isotopes

Inner/outer Shells

Inner/outer Orbitals

Filling Orbital

5d ⁵

Ground State Electron
Configuration

[Xe]

5d ⁵

6s ²

Ground State Electron
Configura tion with
free Orbitals (n=11)

0, 0, 0, 0, 5, 6

G round State Electron Configuration with compressed Orbitals (n=96)

0, 0, 0, 0, 32, 64

Singularity

182

	s	p	d		f	g	h	i	j
1	2
2	2	6
3	2	6	10
4	2	6	10		14
5	2	6	5	5	14	18
6	2	6	10		14	18	22
7
8

Term Symbol

⁶S _5/2

Discovery

Discovered by W. Noddack, I. Tacke and O. Berg (Berlin, Germany) in 1925

Name Derived From

Greek Rhenus meaning 'River Rhine'

APSIDIUM ©	Created:	2002-08-10	075.pdf
	Page update:	2004-12-08	075.pdf