Palladium :
Define: Palladium is transition metal place in between nickel and platinum. It is rare earth metal. It show lustrous ,shiny nature. It is found in earth crust in the from of sulphide minerals . It is also extracted from some metal refining as like zinc ,Copper, Nickel metal refining.
It is non toxic in nature . It is least dense metal . Mostly it is use as catalyst . It is a good catalyst . Palladium is non corrosive metal hence it is use to prevention from corrosion.
Discovery :. Palladium is discovered in 1803 by scientist William Hyde wollaston
Origin of name :. The name is originated after the asteroid pallaus . And gives name after the Greek Goddess of wisdom , pallaus
Physical properties :
Atomic symbol: : it is denoted by symbol Pd
Atomic number : atomic number of Palladium is 46
In Palladium 46 proton and 46 electron is present
Atomic weight/ mass: atomic weight of Palladium is 106.4 Amu
In Palladium 46 proton and 60 neutron is present
Position : it is in periodic table at 10 thcolumn ( group ) and 5th row ( period)
Block : it is place in d block
Colour :palladium show silvery white colour
Nature : it show solid state in nature
Boiling point : Boiling point of palladium is 2963 0
Melting point : Melting point of palladium is 1554 0C
Isotopes:
Palladium show 6 stable isotope
102Pd: atomic Weight of this isotope is 101.9 Amu
In this isotope 46 proton,46 electron and 56 neutron is present
It is present 1.2 % in nature
104 Pd : atomic weight of this isotope is 103.9 Amu
In this isotope 46 proton, 46 electron and 58 neutron is present
It is present 11.14 % in nature
105Pd: atomic weight of this isotope is 104.9 Amu
In this isotope 46 proton, 46 electron and 59 neutron is present
It is present 22.3% in nature
106Pd: atomic weight of this isotope is 105.9 Amu
In this isotope 46 proton, 46 electron and 60 neutron is present
It is present 27.3 % in nature
108Pd : atomic weight of this isotope is 107.9 Amu
In this isotope 46 proton, 46 electron and 62 neutron is present
It is present 26.4% in nature
110Pd : atomic weight of this isotope is 109.9 Amu
In this isotope 46 proton, 46 electron and 64 neutron is present
It is present 11.7 % in nature
Chemical properties :
Electronic configuration
Electronic configuration of palladium is [ kr] 4d10
Electronic configuration in concert of shell is 2,8,18,18
Electronic structure
Valency :valency of palladium is 2 or 4
Atomic radius : atomic radius of palladium is
Reactivity : it is easily react with nitric acid and sulphuric acid
Uses:
Palladium is act as catalyst for many chemical reaction. Mostly in hydrogenation and dehydration reaction
It is use to make capacitor which is use in electrical equipment
It is also use in computer and mobile phones
Palladium is use to make jewellery
Sometimes is use as decolourised by alloying with another metal
Palladium is use as catalytically convertor in cars
It is use as electroplating agent
Question and Answer:
Q1. Define Palladium
Q2. Who discovered Palladium?
Q2. Physical properties of Palladium
Q4. Write Atomic Symbol of Palladium.
Q5. Write the Atomic number of Palladium.
Q6. On which block Palladium element is present?
Q7. What is the color of Palladium?
Q8. What is the Boiling point of Palladium?
Q9. What is the Melting point of Palladium?
Q10. Write the Isotopes of Palladium.
Q11. Show Electronic configuration of Palladium.
Q12. Write Electronic Structure of Palladium.
Q13. What is the Valency of Palladium?
Q14. Write the uses of Palladium element.
