Unhexunium 161

Atomic No. Order:

Alphabetic Order:

Periodic Table

2, 8, 18, 32, 50,

32, 18, 1

Cu
29

Ag
47

Au
79

Rg
111

Uhu
161

Buu
211

Unhexunium

Symbol

Uhu
eka-roentgenium
transition metal

Atomic Number

161

Relative Atomic Mass
¹²C = 12.0000

[ - ]

Significant Atomic Mass

428
Neutrons 267

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

161

Filling Orbital

8s ¹

Ground State Electron Configuration

[Uuo]

5g ¹⁸

6f¹⁴ 7d¹⁰

8s¹

Ground State Electron Configuration with
free Orbitals (n=7)

0, 0, 0, 0, 0, 0, 0, 7

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	14	18	22
7	2		6	10	14	18	22	26
8	1	1	6	10	14	18	22	26	30
9

Term Symbol

Discovery

Name Derived From

IUPAC

APSIDIUM	Created:		2002-10-04		161.pdf
	Page update:		2005-09-18		161.pdf