Zirconium :
Zirconium is transition metal which show shiny lustrous properties. It is found in earth crust in the form of minerals I e. Zircon and baddeleyite.
Zirconium is non corrosive element hence it is use from prevention of corrosion. It is non toxic in nature
Discovery : zirconium is discovered in 1789 by scientist Martin Heinrich Klaproth
Origin of name :. The name is originated from Arabic word ‘ zargun ‘
Meaning of this word gold colour
Physical properties :
Atomic symbol: zirconium is denoted by symbol Zr
Atomic number : atomic number of zirconium is 40
In zirconium 40 proton and 40 electron is present
Atomic weight/ mass: atomic weight of zirconium is 91.2 Amu
In zirconium 40 proton and 51 neutron is present
Position : zirconium is place in periodic table at 5th period ( row) and 4th column ( group)
Block : zirconium is place in d block
Outer electron present in d orbit
Colour : zirconium show grey white colour
Nature:. Zirconium exist in solid state
Boiling point :boiling point of Zirconium is 4406 0C
Melting point :melting point of Zirconium is 1854 0C
Isotopes:
Zirconium show 5 stable isotope
90Zr: atomic weight of this isotope is 89.9 Amu
In this isotope 40 proton , 40 electron and 50 neutron is present
It is present 51.4% in nature
91Zr : atomic weight of this isotope is 90.9 Amu
In this isotope 40 proton, 40 electron And 51 neutron is present
It is present 11.2 % in nature
92Zr : atomic weight of this isotope is 91.9 Amu
In this isotope 40 proton 40 electron and 52 neutron is present..
It is present 17.1 % in nature
94Zr : atomic weight of this isotope is 93.9 Amu
In this isotope 40 proton, 40 electron and 54 neutron is present.
It is present 17.3 % in nature
96Zr: atomic weight of this isotope is 95.9 Amu .
In this isotope 40 proton, 40 electron and 56 neutron is present
It is present 2.8 % in nature
Chemical properties :
Electronic configuration
Electronic configuration of zirconium is [ kr] 4d2 5S2
Electronic configuration in concert of shell is 2, 8 18, 8, 4
Electronic structure
Valency :zirconium show valency 4
In zirconium valence shell contain 4 Valence electron
Atomic radius : atomic radius of zirconium is 206 Pm
Uses:
Zirconium is use to make fake diamond i.e. game stone
It is use to make steel alloy which is use to make surgical equipment
It is use to make bricks
Sometimes zirconium is use in deodorant
It is use to make coloured glazes
Zirconium is also use to make ceramics and glass which is use to make kitchen utensils
It is use to make photoflash bulb
It is mainly use to make nuclear reactor
Oxide form of zirconium is used to make crucible and furnace .
Question and Answer:
Q1. Define Zirconium
Q2. Who discovered Zirconium?
Q2. Physical properties of Zirconium
Q4. Write Atomic Symbol of Zirconium.
Q5. Write the Atomic number of Zirconium.
Q6. On which block Zirconium element is present?
Q7. What is the color of Zirconium?
Q8. What is the Boiling point of Zirconium?
Q9. What is the Melting point of Zirconium?
Q10. Write the Isotopes of Zirconium.
Q11. Show Electronic configuration of Zirconium.
Q12. Write Electronic Structure of Zirconium.
Q13. What is the Valency of Zirconium?
Q14. Write the uses of Zirconium element.