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