Answer
424.2k+ views
Hint: The metals are said to be good conductors of electricity if they allow electricity or electrons to be precise to flow through them easily. The property of conductors which allows them to conduct electricity is called conductivity. Such materials offer less opposition or resistance to the flow of charges.
Complete answer:
For a material to be a good conductor, the electricity passed through it must be able to move the electrons the metal possesses, the freer the electrons are in a metal, the greater will be its conductivity.
Among the given elements silver and gold have a maximum number of electrons. Silver is the best conductor of electricity because it contains a higher number of movable atoms (free electrons) owing to the fact that gold has a preceding f-orbital from the actinide series. These f-orbitals are very densely packed and are nearer to nucleus compared to even d-orbitals (silver, transitional metals) and they tend to hold back the electrons restricting the easy flow of current through them.Thus the valence shells and crystal structure of silver makes it the best conductor of electricity.
Also, the correct order of the conductivity in the given elements is given below: \[Silver>Gold>Nickel>Sodium\]
So, the correct answer is “Option B”.
Note: Even though silver is the best conductor of electricity, there are two reason why silver is not used very frequently over other conductors: 1) it is a very precious metal and thus has a high price for the amount of material used and 2) It corrodes or oxidizes easily as it has good affinity towards oxygen. Copper is hence, \[(Cu)\] is commonly used when oxidation is not a major issue, such as home wiring and in most electric motors.
Complete answer:
For a material to be a good conductor, the electricity passed through it must be able to move the electrons the metal possesses, the freer the electrons are in a metal, the greater will be its conductivity.
Among the given elements silver and gold have a maximum number of electrons. Silver is the best conductor of electricity because it contains a higher number of movable atoms (free electrons) owing to the fact that gold has a preceding f-orbital from the actinide series. These f-orbitals are very densely packed and are nearer to nucleus compared to even d-orbitals (silver, transitional metals) and they tend to hold back the electrons restricting the easy flow of current through them.Thus the valence shells and crystal structure of silver makes it the best conductor of electricity.
Also, the correct order of the conductivity in the given elements is given below: \[Silver>Gold>Nickel>Sodium\]
So, the correct answer is “Option B”.
Note: Even though silver is the best conductor of electricity, there are two reason why silver is not used very frequently over other conductors: 1) it is a very precious metal and thus has a high price for the amount of material used and 2) It corrodes or oxidizes easily as it has good affinity towards oxygen. Copper is hence, \[(Cu)\] is commonly used when oxidation is not a major issue, such as home wiring and in most electric motors.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Why Are Noble Gases NonReactive class 11 chemistry CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let X and Y be the sets of all positive divisors of class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x and y be 2 real numbers which satisfy the equations class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x 4log 2sqrt 9k 1 + 7 and y dfrac132log 2sqrt5 class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Let x22ax+b20 and x22bx+a20 be two equations Then the class 11 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
At which age domestication of animals started A Neolithic class 11 social science CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Which are the Top 10 Largest Countries of the World?
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Give 10 examples for herbs , shrubs , climbers , creepers
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Difference Between Plant Cell and Animal Cell
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Write a letter to the principal requesting him to grant class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Change the following sentences into negative and interrogative class 10 english CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)
Fill in the blanks A 1 lakh ten thousand B 1 million class 9 maths CBSE
![arrow-right](/cdn/images/seo-templates/arrow-right.png)