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Metals are good conductors of electricity because
- a)they contain free electrons
- b)the atoms are lightly packed
- c)they have high melting point
- d)All of the above
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Metals are good conductors of electricity becausea)they contain free e...
Metals are good conductors of electricity because of the following reasons:
1. Presence of Free Electrons:
- Metals have a unique atomic structure where the outermost electrons of their atoms are loosely bound.
- This allows the outermost electrons to move freely within the metal lattice, creating a sea of delocalized electrons.
- These free electrons are not associated with any particular atom and are able to move throughout the metal.
- The presence of these free electrons facilitates the flow of electric current in metals.
2. Lightly Packed Atoms:
- The atoms in metals are arranged in a closely packed structure.
- The atoms have a relatively large number of available valence electrons.
- These valence electrons are free to move within the lattice due to weak interatomic forces.
- The loosely held electrons make it easier for electric charges to flow through the metal.
3. High Melting Point:
- While a high melting point is not the sole reason for metals being good conductors of electricity, it is a contributing factor.
- Metals generally have high melting points due to the strong metallic bonding between atoms.
- This high melting point ensures that metals remain in their solid state at normal operating temperatures, allowing them to conduct electricity effectively.
Therefore, the correct answer is option A: metals are good conductors of electricity because they contain free electrons.
1. Presence of Free Electrons:
- Metals have a unique atomic structure where the outermost electrons of their atoms are loosely bound.
- This allows the outermost electrons to move freely within the metal lattice, creating a sea of delocalized electrons.
- These free electrons are not associated with any particular atom and are able to move throughout the metal.
- The presence of these free electrons facilitates the flow of electric current in metals.
2. Lightly Packed Atoms:
- The atoms in metals are arranged in a closely packed structure.
- The atoms have a relatively large number of available valence electrons.
- These valence electrons are free to move within the lattice due to weak interatomic forces.
- The loosely held electrons make it easier for electric charges to flow through the metal.
3. High Melting Point:
- While a high melting point is not the sole reason for metals being good conductors of electricity, it is a contributing factor.
- Metals generally have high melting points due to the strong metallic bonding between atoms.
- This high melting point ensures that metals remain in their solid state at normal operating temperatures, allowing them to conduct electricity effectively.
Therefore, the correct answer is option A: metals are good conductors of electricity because they contain free electrons.
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Metals are good conductors of electricity becausea)they contain free electronsb)the atoms are lightly packedc)they have high melting pointd)All of the aboveCorrect answer is option 'A'. Can you explain this answer?
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