Question

what is atomic number for lutitium

​

Answer 1

Answer:

71 is atomic number for lutitium

Answer 2

1. Lutetium is a f block element with atomic number 71 , atomic mass 174.96 g and belongs to group 19
2. Lutetium is symbolically written as Lu. It is a rare earth metal in lanthanide series. It is never found free in nature, as it is found mostly in ores
3. It have highest melting point and is last member of lanthanide series.
4. In pure form, lutetium is silvery white and stable in air
5. Natural lutetium consist of two isotopes: stable lutetium (175) and radioactive lutetium (176)
6. Isotopes contain same atomic number and different atomic mass number
7. Lutetium is used in research and it's compounds are used as host in scintillators and X Ray phosphors and it's oxide are used in optical lenses
8. Scintillators is detector material and get shine when struck by charged particle