Discovered By: Peter Armbruster, Gottfried Munzenburg
Discovery year: 1982

The following table showing some properties of Meitnerium(Mt):

Table Example
Atomic number 109
Group 9
Period 7
Block d
Electrons 109
Protons 109
Neutrons 169
Atomic weight (278)
Oxidation states n/a
Electrons per shell K2 L8 M18 N32 O32 P15 Q2


Table Example
Electron configuration 1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^6 5s^2 4d^10 5p^6 6s^2 4f^14 5d^10 6p^6 7s^2 5f^14 6d^7
Radioactive Yes
half life 1.8*10^3 s
Lifetime 2.6*10^3 s
Decay mode Alpha emission (α-decay)