Argon – Learn all details regarding Argon in Periodic Table i.e. Atomic Mass, Number, Physical, Chemical properties, Electronic configuration, Valency, Chemical reaction, Uses
Argon :
Argon is an Nobel gas It give inert atmosphere . It is very simplest element. It is found by the process of cooling air It is 3 rd most found element in earth crust . It air 0.93% of argon is present
Discovery
It is discovered by lord Rayleigh and William Ramsay in 1894
Origin of name :.
The name argon is originated from Greek word ‘ agros ‘ The meaning of agros is idel
Physical properties :
1) Atomic symbol: Atomic e of argon is Ar
2) Atomic number Atomic number of argon is 18 In argon 18 electron and 18 proton is present
3) Atomic weight/ mass: Atomic weight of argon is 39.94 In argon nucleus 18 proton 22 neutron is present . Sum of proton and neutrons give atomic mass
4) Position
It is place in 18 th column ( group) And 3 rd row ( period) It is called as zero group element
5) Block
It is place in p block
6) Colour :
It is colourless gas
7) Odour
It didn’t gives any odour , it is odourless
8) Boiling point :
Boiling point of argon is -185 C
9) Melting point :
Melting point of chlorine is -189.3 C
10) Isotopes:
Argon show 3 stable isotope
36Ar : atomic weight of this isotope Is 35.9 .. in this isotope 18 proton, 18 electron and 18 neutron is present . It is present 0.3% in nature
38Ar: Atomic weight of this isotope is 37.6. in this isotope 18proton , 18 electron and 20 neutron is present .it is present 0.6% in nature
40Ar: atomic weight of this isotope is 39.9 . In this isotopes 18 proton , 18 electron and 22 neutron is present . It is present 99% in nature
Chemical properties :
1) Electronic configuration
Electronic configuration of chlorine is 1S 22S2 2P6 3S2 3P 6 Electronic configuration in concert of shell is 2,8,8
2) Electronic structure
In chlorine 2 electron present in K shell , 8 electrons present in L shell ,8 electrons present in M shell
3) Valency :
Argon show no valency. In argon atom all shell are completely filled with electron
4) Atomic radius :
Atomic radius of argon is 71 pm
5) Reactivity : It does not react with any metal and non metal .because it’s octate is completely filled
Uses:
1) It is use to making of titanium .
2) Argon have high melting point hence it is use in yellow bulb
3) Argon gas use in welding purpose . Because it’s give inert atmosphere
4) It is use in food and drink industry
5) It is use in fluorescent tubes . It’s emit blue light .
6) It is use in extinguisher fire
7) It’s lesser use in surgery, arteries and eye detect .
Question and Answer:
Q1. Define Argon
Q2. Who discovered Argon?
Q2. Physical properties of Argon
Q4. Write Atomic Symbol of Argon.
Q5. Write the Atomic number of Argon.
Q6. On which block Argon element is present?
Q7. What is the color of Argon?
Q8. What is the Boiling point of Argon?
Q9. What is the Melting point of Argon?
Q10. Write the Isotopes of Argon.
Q11. Show Electronic configuration of Argon.
Q12. Write Electronic Structure of Argon.
Q13. What is the Valency of Argon?
Q14. Write the uses of Argon element.