Unquadennium 149 Uqe

Atomic No. Order:

Alphabetic Order:

Periodic Table

2, 8, 18, 32, 50,

29, 8, 2

Ho
67

Es
99

Uqe
149

Uee
199

Unquadennium

Symbol

Uqe
actinide series

Atomic Number

149

Relative Atomic Mass
¹²C = 12.0000

[ - ]

Significant Atomic Mass

396
Neutrons 247

Atomic Radius pm

First Ionisation Energy
kJ mol^-1

Electronegativity

Density kg m^-3

Molar Volume cm³

Thermal Conductivity
W m^-1 K^-1

Melting Point

Boiling Point

Number of Isotopes

Inner + outer Shells

Inner + outer Orbitals

110

149

Filling Orbital

6f ¹¹

Ground State Electron Configuration

[Uuo]

5g ¹⁸

6f ¹¹

7p⁶ 8s²

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

0, 0, 0, 0, 0, 3, 10, 6

Ground State Electron Configuration with
comp. Orbitals (n= 240)

0, 0, 0, 0, 0, 40, 80, 120

Singularity

408

110

240

	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	2	6	10	11	3	18	22
7	2	6	10	14		18	22	26
8	2	6	10	14		18	22	26	30
9

Term Symbol

Discovery

Element at the time of writing
has not been discovered.

Name Derived From

IUPAC

APSIDIUM	Created:		2002-10-01		149.pdf
	Page update:		2007-12-09		149.pdf