Thulium 69

Atomic No. Order:

Alphabetic Order:

Tm
69

Md
101

Upu
151

Bnu
201

Thulium

Symbol

Atomic Number

Relative Atomic Mass
¹²C = 12.0000

168.93421

Atomic Radius pm

175

First Ionisation Energy
kJ mol ^-1

596.7

Electronegativity

1.25

Density
kg m ^-3

9321 [293 K]

Molar Volume cm ³

18.12

Thermal Conductivity
W m ^-1 K ^-1

16.8 [300 K]

Melting Point K

1818

Boiling Point K

2220

Number of Isotopes

????

Algorythm of Software

Inner/outer Shells

Inner/outer Orbitals

2, 8, 18,

31, 8, 2

2, 8, 18, 32,

8, 1

Filling Orbital

4f ¹³

6s ¹

Ground State Electron Configuration

[Xe]

4f ¹³

5p ⁶

6s ²

[Xe]

5p ⁶

6s ¹

Ground State Electron Configuration with free Orbitals (n=17)

0, 0, 0, 1, 10, 6

0, 0, 0, 0, 10, 7

Ground 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	10	14	18
6	1	1	6	10	14	18	22
7
8

Term Symbol

² F _7/2

Discovery

Discovered by P.T. Cleve (Uppsala, Sweden) in 1879

Name Derived From

Named after Thule (ancient name for Scandinavia)

APSIDIUM ©	Created:		2002-08-08		069.pdf
	Page update:		2005-01-18		069.pdf