Bohrium at Chemical Elements.com 

Basic Information


Name: Bohrium
Symbol: Bh
Atomic Number: 107
Atomic Mass: (262.0) amu
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 107
Number of Neutrons: 155
Classification: Transition Metal
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown
Other Names: Unnilseptium (Uns), Bohrium (Bh), Nielsbohrium (Ns)


Atomic Structure

[Bohr Model of Bohrium]  
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: 13
    Seventh Energy Level: 2

Isotopes

Isotope Half Life
Bh-261 0.01 seconds
Bh-262 0.1 seconds
Bh-262m 0.0080 seconds

Facts


Date of Discovery: 1976
Discoverer: Peter Armbruster, Gottfried Munzenber and others
Name Origin: After Niels Bohr (Danish physicist)
Uses: No uses known
Obtained From: Man-made