Ununnilium at Chemical Elements.com 


 

Basic Information


Name: Ununnilium
Symbol: Uun
Atomic Number: 110
Atomic Mass: (269.0) amu
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 110
Number of Neutrons: 159
Classification: Transition Metal
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown
More information about the naming of the heavy elements is available


Atomic Structure

[Bohr Model of Ununnilium]  
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: 17
    Seventh Energy Level: 1

Isotopes

Isotope Half Life
Uun-272 10.0 milliseconds

Facts


Date of Discovery: 1987
Discoverer: Organessian and al
Name Origin: Un (one) un (one) nil (zero) ium
Uses: No uses known
Obtained From: Man-made