Make your own free website on


Information valid for Md-258 unless otherwise noted

Basic Information

Symbol: Md
Atomic Number: 101
Mass: (258.0)
Melting Point: Unknown
Boiling Point: Unknown
Number of Protons/Electrons: 101
Number of Neutrons: 157
Classification: Rare Earth
Crystal Structure: Unknown
Density @ 293 K: Unknown
Color: Unknown

Atomic Structure

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

  1. First Energy Level: 2
    Second Energy Level: 8
    Third Energy Level: 18
    Fourth Energy Level: 32
    Fifth Energy Level: 31
    Sixth Energy Level: 8
    Seventh Energy Level: 2


Isotope Half Life
Md-250 50.0 seconds


Date of Discovery: 1955
Discoverer: G.T. Seaborg
Name Origin: After Dmitri Ivanovitch Mendeleyev
Uses: No uses known
Obtained From: Man-made