Basic Info
 
 
Name Holmium (L. Holmia: Stockholm)
Symbol Ho
Atomic Mass 164.9304
Atomic Number 67
Melting Point 1474 °C
Boiling Point 2700 °C
Isotopes  There is one known stable isotope of Holmium. The Atomic mass is 195, its 100% Abundant, and its stable.
(Jefferson Labs)

For A Complete List of Isotopes, Click Here
 

Physical Characteristics Pure holmium has a metallic to bright silver luster. It is relatively soft and malleable, and is stable in dry air at room temperature, but rapidly oxidizes in moist air and at elevated temperatures. The metal has unusual magnetic properties. Few uses have yet been found for the element. The element, as with other rare earths, seems to have a low acute toxic rating. (Los Amos)
Structure # Protons: 67
# Neutrons: 98
# Electrons: 67

Electron Configuration: 1s22s22p63s23p63d104s24p64d104f115s25p66s2
 

Crystal Structure Hexagonal Structure

        

(Web Element)

All Non Specified Data is from Handbook for Physics and Chemistry.