Rhodium :
Define: Rhodium is transition metal which is present extremely rare on earth. It show hard ,shiny , and lustrous properties . It is non radioactive metal . It is found in earth crust in in combined form with platinum . It is found as by product in nickel and copper purification process. It gives inert atmosphere to chemical element. Rhodium is carcinogenic element
Discovery : Rhodium is discovered in 1803 by scientist William Hyde Wollaston
Origin of name :. The name is originated from Greek word ‘ rhodom ‘ meaning of this word is rose coloured
Physical properties :
Atomic symbol: it is denoted by symbol Ru
Atomic number : Atomic number of Rhodium is 45
In Rhodium 45 proton and 45 electron is present
Atomic weight/ mass: atomic weight of Rhodium is 102.9 Amu
In Rhodium 45 proton and 52 neutron is present
Position : it is placed in periodic table at 9th column ( group ) and 5th row ( period )
Block : it is placed in d block
Colour :. Rhodium show silver white colour.
Nature : Rhodium show solid nature
Boiling point :boiling point of Rhodium is 3695 0C
Melting point : melting point of 1963 0C
Isotopes: Rhodium show only 1 stable isotope
- 103Rh: atomic weight of this isotope is 102.9 Amu
In this isotope 45 proton, 45 electron and 52 neutron is present
Chemical properties :
Electronic configuration
Electronic configuration of Rhodium is [ kr ] 4d8 5S1
Electronic configuration in concert of shell is 2,8,18,16,1
Electronic structure: In Rhodium atom 2 electron present in K shell , 8 electrons present in L shell , 18 electron present in M shell , 16 electron present in N shell and 1 Electron present in O shell
Valency : Rhodium show valency 3
Atomic radius : Atomic radius of Rhodium is 173 Pm
Uses:
- Rhodium is use for coating on optical fibres and mirrors
- It is use as catalyst in chemical reaction in industry
- It is used in electrical equipment for the resistance of electrical contact
- It is use in jewellery as Rhodium platting
- It is use as refractive surface on optical equipment
- Rhodium is alloying agent to harder platinum and palladium
- It is also use in furnace winding
Question and Answer:
Q1. Define Rhodium
Q2. Who discovered Rhodium?
Q2. Physical properties of Rhodium
Q4. Write Atomic Symbol of Rhodium.
Q5. Write the Atomic number of Rhodium.
Q6. On which block Rhodium element is present?
Q7. What is the color of Rhodium?
Q8. What is the Boiling point of Rhodium?
Q9. What is the Melting point of Rhodium?
Q10. Write the Isotopes of Rhodium.
Q11. Show Electronic configuration of Rhodium.
Q12. Write Electronic Structure of Rhodium.
Q13. What is the Valency of Rhodium?
Q14. Write the uses of Rhodium element.