Date of Discovery: 1925
Discoverer: Walter Noddack
Name Origin: From Rhines provinces of Germany
Uses: filaments for mass spectrographs
Obtained From: gadolinite, molybdenite

 
Atomic Number: 75
Atomic Mass: 186.207 amu
Melting Point: 3180.0 °C (3453.15 K, 5756.0 °F)
Boiling Point: 5627.0 °C (5900.15 K, 10160.6 °F)
Crystal Structure: Hexagonal
Density @ 293 K: 21.02 g/cm3
Color: silverish

 
Isotope Re-182
Re-182m
Re-183
Re-184
Re-184m
Re-185
Re-186 Re-187
Re-188
Half Life
2.67 days
12.7 hours
70.0 days
38.0 days
165.0 days
Stable
3.77 days
4.1E10 years
16.94 hours