Neodymium
Neodymium is transition metal place in lanthanide series at 3rd number .it is rare earth metal. It is hard . It is found in earth crust in Monazite and Bastnaesite minerals. It is also from by the reduction of neodymium chloride of fluoride with calcium
Neodymium show paramagnetic in nature and moderately toxic in nature. It is irritating to eyes.
Discovery: Neodymium is discovered in 1885 by scientist Carl Auer Von Welsbach
Origin of name :. The name neodymium is derived from Greek word ‘ neosdidymos’ meaning of this word is new twin
Physical properties :
Atomic symbol: Neodymium is denoted by symbol Nd
Atomic number : Atomic number of Neodymium is 60
In neodymium 60 proton and 60 electron is present
Atomic weight/ mass: atomic weight of neodymium is 144.2Amu
In neodymium 60 proton and 84 neutron is present
Position : Neodymium is place periodic table at 3rd column ( group ) and 6 thperiod (row)
Block : it is place in f block
Colour :Neodymium show silver colour
Nature : neodymium present in solid form in nature
Boiling point : boiling point of Neodymium is 3074 0C
Melting point :melting point of Neodymium is 1016 0C
Isotopes:
Neodymium show 7 stable isotopes
142Nd : atomic weight of this isotope is 141.9 Amu
In this isotope 60 proton,60 electron and 82 neutron is present
It is present 27.2% in nature.
143Nd: atomic weight of this isotope is 142.9 Amu
In this isotope 60 proton, 60 electron and 83neutron is present
It is present 12.2% in nature
144Nd: atomic weight of this isotope is 143.9 Amu
In this isotope 60proton ,60 electron and 84 neutron is present
It is present 23.8% in nature
145Nd: atomic weight of this isotope is 144.9 Amu
In this isotope 60 proton, 60 electron and 85neutron is present
It is present 8.3% in nature
146Nd: atomic weight of this isotope is 145.9 Amu
In this isotope 60 proton, 60 electron and 86 neutron is present
It is present 17.2% in nature
148Nd: atomic weight of this isotope is 147.9 Amu
In this isotope 60 proton,60 Electron and 88 neutron is present
It is present 5.8 % in nature
150Nd: atomic weight of this isotope 149.9 Amu
In this isotope 60 proton, 60 Electron and 90 neutron is present
It is present 5.6 % in nature
Chemical properties :
Electronic configuration
Electronic configuration of Neodymium is [ xe] 4f4 6S2
Electronic configuration in concert of shell is 2,8,18,22,8,2
Electronic structure
Valency :valency of Neodymium is 3 or 4
Atomic radius : Atomic radius of Neodymium is 206 pm
Uses:
It’s oxide and nitrate form is use as catalyst in polymerization reaction
Neodymium is use to make lasers and lasers pointers which is use in eye surgery , cosmetics surgery . And all type of skin cancers .
Neodymium with praseodymium is use to make didymium glass which is use to make googles which is use during blowing and welding .
It is use to make permanent magnet
Neodymium is use in Electronic device , loudspeaker and microphone
Neodymium glass is use in tanning booths.
Question and Answer:
Q1. Define Neodymium
Q2. Who discovered Neodymium?
Q2. Physical properties of Neodymium
Q4. Write Atomic Symbol of Neodymium.
Q5. Write the Atomic number of Neodymium.
Q6. On which block Neodymium element is present?
Q7. What is the color of Neodymium?
Q8. What is the Boiling point of Neodymium?
Q9. What is the Melting point of Neodymium?
Q10. Write the Isotopes of Neodymium.
Q11. Show Electronic configuration of Neodymium.
Q12. Write Electronic Structure of Neodymium.
Q13. What is the Valency of Neodymium?
Q14. Write the uses of Neodymium element.