Atomic Number: 75
Atomic Weight: 186.207
Melting Point: 3459 K (3186°C or 5767°F)
Boiling Point: 5869 K (5596°C or 10105°F)
Density: 20.8 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Metal
Period Number: 6
Group Number: 7
Group Name: none
Both Rhenium isotopes are used for medical purposes. Re-185 is used for the production of Re-186 which is used for bone pain palliation. Re-187 can be used for the production of Re-188 which is used for cancer therapy and restenosis, though most Re-188 is produced via W-186.