Meitnerium
109
Mt
Group
9
Period
7
Block
d
Protons
Electrons
Neutrons
109
109
159
General Properties
Atomic Number
109
Atomic Weight
[278]
Mass Number
268
Category
Transition metals
Color
n/a
Radioactive
Yes
Named after Lise Meitner, the Austrian physicist
Crystal Structure
n/a
History
Meitnerium was first synthesized in 1982 by a German research team led by Peter Armbruster and Gottfried Münzenberg at the Institute for Heavy Ion Research (Gesellschaft für Schwerionenforschung) in Darmstadt.
The team bombarded a target of bismuth-209 with accelerated nuclei of iron-58 and detected a single atom of the isotope meitnerium-266.
The team bombarded a target of bismuth-209 with accelerated nuclei of iron-58 and detected a single atom of the isotope meitnerium-266.
Electrons per shell
2, 8, 18, 32, 32, 15, 2
Electron Configuration
[Rn] 5f14 6d7 7s2
Meitnerium has 7 isotopes whose half-lives are known
Physical Properties
Phase
Solid
Density
35 g/cm3
Melting Point
-
Boiling Point
-
Heat of Fusion
n/a
Heat of Vaporization
n/a
Specific Heat Capacity
-
Abundance in Earth's crust
n/a
Abundance in Universe
n/a
Image Credits: Wikimedia Commons (Commander-pirx)
The element was discovered at the Institute for Heavy Ion Research in Darmstadt, Germany
CAS Number
54038-01-6
PubChem CID Number
n/a
Atomic Properties
Atomic Radius
-
Covalent Radius
129 pm
Electronegativity
-
Ionization Potential
-
Atomic Volume
-
Thermal Conductivity
-
Oxidation States
3, 4, 6
Applications
Meitnerium is used for scientific research purposes only.
Meitnerium is harmful due to its radioactivity
Isotopes
Stable Isotopes
-Unstable Isotopes
265Mt, 266Mt, 267Mt, 268Mt, 269Mt, 270Mt, 271Mt, 272Mt, 273Mt, 274Mt, 275Mt, 276Mt, 277Mt, 278Mt, 279Mt