Basic Information
Bohr Model
Static
Interactive
Descriptive Numbers
CAS Number
54085-64-2
Mendeleev Number
98
Mass
Atomic Mass
289 Da
Periodic Position
X Position
15
Y Position
7
Period
7
Group
15
Classification
Block
p
Category
Unknown
Goldschmidt
Synthetic
Atomic Radius
Covalent (Pyykko)
162
Temperature
Melting/Freeze (USE)
670 °K
Boiling/Density (USE)
1400 °K
Density
STP
13.5 kg/cm³
Heat
Adiabatic Index
N/A
Etymology
Language Of Origin
Latin
Origin Of Word
From Moscow Oblast, where the element was first synthesized
Meaning
Moscow
Symbol Origin
place name
Etymological Description
It is named after the Moscow Oblast where the element was discovered. It is also known by the names eka-bismuth and ununpentium (Uup), which was temporarily given by the International Union of Applied Fundamentals and Chemistry.
Discovery & Isolation
Observed/Predicted By
Y. Organizer vd. (Dubna'da newspaper ONAE)
Observed/Discovery Year
2003
Discovery Location
Isolated Sample By
Joint Institute for Nuclear Research
Production & Use
Sources
It is obtained by bombarding americium-243 with calcium-48.
Radioactivity
Half Life
1 minute
Lifetime
1.5 minutes
Decay Mode
Alpha Six
Electron Affinity
Electron Affinity (kJ/mol)
35.3
Dipole Polarity
Accepted
71
Uncertainty
20
Electron & Quantum
Electron Configuration
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d10 6p6 7s2 5f14 6d10 7p3
Quantum Number
4h/a
Electron Configuration Semantic
*[Rn] 5f14 6d10 7s2 7p3
Shells-0
2
Shells-1
8
Shells-2
18
Shells-3
32
Shells-4
32
Shells-5
18
Shells-6
5
