Antimony (Sb) :
Define : Antimony is metalloid which is place in between Arsenic and Bismuth . It show lustrous , shiny, hard , and brittle properties. It Is place in nitrogen family .it is toxic in nature.
Discovery : Antimony is present on earth from Ancient times.
Origin of name :.The name is originated from Greek word ‘ Anti – monos‘
Meaning of this word is Not alone .
Physical properties :
Atomic symbol: Antimony is denoted by symbol Sb
Atomic number : Atomic number of Antimony is 51
In Antimony 51 proton and 51 neutron is present
Atomic weight/ mass: atomic weight of Antimony is 121.7 Amu
In Antimony 51 proton and 71 neutrons is present in antimony
Position : it is place in periodic table at 5th row (period) and 15th column ( group)
Block : it is place in p block
Colour : antimony show grey colour
Nature : Antimony present in nature at solid form .
Boiling point : boiling point of Antimony is 15870C
Melting point : melting point of Antimony is 630 0C
Isotopes:
Antimony show 2 stable isotopes
121Sb: Atomic weight of this isotope is 120.9 Amu
In this isotope 51 proton,51 electron and 70 neutron is present
It is present 57.21% in nature
123Sb: Atomic weight of this isotope is 122.9 Amu
In this isotope 51 proton, 51 electron and 72 neutron is present
It is present 42.7% in nature .
Chemical properties :
Electronic configuration
Electronic configuration of Antimony is [ Kr ] 4d10 5S2 5P3
Electronic configuration in concert of shell is 2,8,18,18,5
Electronic structure
Valency: valency of Antimony is 3
In valence shell 3 valence electrons is present
Atomic radius : Atomic radius of Antimony is 133 Pm
Reactivity : Antimony is less reactive element
At normal temperature It does not react with Air and water .
At high temperature it is burn in air
Uses:
It’s trioxide form is use to make flame retardant material
Antimony is use to make paints and pigments
It is also use to make glass and enamels
Antimony is use as doping material in semiconductor and use in electrical device
It’s alloy form is use in cosmetics products .like eyeliner , mascara.
Antimony is use in solar panel .
It is use to make cable sheets , pipes and pumps
It is mainly use to make sofas , furniture ,auto and aircraft seat covers
Question and Answer:
Q1. Define Antimony
Q2. Who discovered Antimony?
Q2. Physical properties of Antimony
Q4. Write Atomic Symbol of Antimony.
Q5. Write the Atomic number of Antimony.
Q6. On which block Antimony element is present?
Q7. What is the color of Antimony?
Q8. What is the Boiling point of Antimony?
Q9. What is the Melting point of Antimony?
Q10. Write the Isotopes of Antimony.
Q11. Show Electronic configuration of Antimony.
Q12. Write Electronic Structure of Antimony.
Q13. What is the Valency of Antimony?
Q14. Write the uses of Antimony element.
