Unbiennium 129 Ube

Atomic No. Order:

Alphabetic Order:

2, 8, 18, 32,

41, 18, 8, 2

Ube
129

Use
179

Unbiennium

Symbol

Ube
superactinide series

Atomic Number

129

Relative Atomic Mass
¹²C = 12.0000

[ - ]

Significant Atomic Mass

342
Neutrons 213

Atomic Radius pm

First Ionisation Energy
kJ mol ^-1

Electronegativity

Density kg m ^-3

Molar Volume cm ³

Thermal Conductivity
W m ^-1 K ^-1

Melting Point

Boiling Point

Number of Isotopes

Inner + outer Shells

Inner + outer Orbitals

129

Filling Orbital

5g⁹

Ground State Electron Configuration

[Uuo]

5g⁹

6d¹⁰ 7p⁶ 8s²

Ground State Electron Configuration with
free Orbitals (n= 39 )

0, 0, 0, 0, 9, 14, 10, 6

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

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

Singularity

408

240

Term Symbol

CAS Reg-ID:

Discovery

Element at the time of writing
has not been discovered.

Name Derived From

IUPAC

APSIDIUM	Created:		2002-09-11		129.pdf
	Page update:		2007-12-09		129.pdf