Question

What is the chemical sign of lutetium and what are the main properties of this substance? Maybe you can write something about the use of lutetium? 

Answer 1

Chemical name of lutetium: Lu. Main properties: Electronic structure: [Xe] 4f145d16s2 Number: 71 Atomic mass: 174.967 u ± 0.001 u Date of discovery: 1907. CAS ID: 7439-94-3 Melting point: 1 663 ° C a very rare metal on earth, which is why it is very expensive, $ 10,000 / kg.