Meitnerium at Chemical Elements.com 


 

Basic Information


Name: Meitnerium
Symbol: Mt
Atomic Number: 109
Atomic Mass: (266.0) amu
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 109
Number of Neutrons: 157
Classification: Transition Metal
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown
Other Names: Unnilennium (Une), Meitnerium (Mt), Meitnerium (Mt)


Atomic Structure

[Bohr Model of Meitnerium]  
Number of Energy Levels: 7

    First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 32
    Sixth Energy Level: 15
    Seventh Energy Level: 2

Isotopes

Isotope Half Life
Mt-226 3.4 milliseconds

Facts


Date of Discovery: 1982
Discoverer: Heavy Ion Research Laboratory
Name Origin: After Lise Meitner (Austrian physicist)
Uses: No uses known
Obtained From: Man-made