Lutetium
Element
Lutetium
Date of birth :
- It was discovered in 1907 by Carl Welsbach and Georges Urbain
Physical description :
-Symbol : Lu-Protons : 71
-Electrons : 71
-Neutrons : 104
-Atomic Number : 71
-Atomic Mass : 174.97
-Group : 3
-Period : 6
-Boiling point : 6,143°F
-Melting Point : 3,025°F
-Natural state is solid
Related groups or family members :
-Scandium
-Yttrium
-Lawrencium
Last seen
-Its used as a catalyst for cracking hydrocarbons in oil refineries
-It has 35 isotopes.
-Its the heaviest and hardest of all the rare earth metals
-Its not found free in nature
Alias : The latin name came from lutetia which means Paris
Reward :
$10,000 per Kg