Holmium 67

Atomic No. Order:

Alphabetic Order:

2, 8, 18,

29, 8, 2

Ho
67

Es
99

Uqe
149

Uee
199

Holmium

Symbol

Atomic Number

Relative Atomic Mass
¹²C = 12.0000

164.93032

Atomic Radius pm

177

First Ionisation Energy
kJ mol ^-1

580.7

Electronegativity

1.23

Density kg m ^-3

8795 [298 K]

Molar Volume cm ³

18.75

Thermal Conductivity
W m ^-1 K ^-1

16.2 [300 K]

Melting Point K

1747

Boiling Point K

2968

Number of Isotopes

Inner/outer Shells

Inner/outer Orbitals

Filling Orbital

4f ¹¹

Ground State Electron Configuration

[Xe]

4f ¹¹

5p ⁶

6s ²

Ground State Electron Configuration with free Orbitals (n=19)

0, 0, 0, 3, 10, 6

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	11	3
5	2	6	10	14		18
6	2	6	10	14		18	22
7
8

Term Symbol

⁴I _15/2

Discovery

Discovered by P.T. Cleve (Uppsala, Sweden) in 1878 and independantly by M. Delafontaine and J.L. Soret (Geneva, Switzerland)

Name Derived From

Greek Holmia meaning 'Sweden'

APSIDIUM ©	Created:		2002-08-08		067.pdf
	Page update:		2005-01-18		067.pdf