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If the number of valence electrons of an atom is 4 then the substance is usually?
- a)semiconductor
- b)an insulator
- c)A conductor
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
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Verified Answer
If the number of valence electrons of an atom is 4 then the substance...
The substance is usually a conductor. Good examples of semiconductors are silicon, germanium, selenium which are not even close to group one, two or three.
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Hence, the correct option is (A)
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If the number of valence electrons of an atom is 4 then the substance...
Valence Electrons and its significance
Valence electrons are the electrons present in the outermost shell or valence shell of an atom. They participate in chemical bonding and determine the properties of an element. The number of valence electrons of an atom is used to predict the chemical behavior of an element.
Semiconductors and its characteristics
Semiconductors are materials that have electrical conductivity between conductors (metals) and insulators (non-metals). They have four valence electrons in their outermost shell. When a small amount of impurity is added to a semiconductor, it becomes a good conductor of electricity. This process is called doping.
Explanation of the answer
Since semiconductors have four valence electrons in their outermost shell, the answer to the given question is option A, which states that the substance is usually a semiconductor. The electrical conductivity of semiconductors can be modified through the process of doping, which makes them useful in the production of electronic devices such as transistors, diodes, and solar cells.
Conclusion
In conclusion, the number of valence electrons in an atom is essential in predicting the chemical behavior of an element. The presence of four valence electrons in semiconductors makes them useful in the production of electronic devices. Therefore, the correct answer to the given question is option A, which states that the substance is usually a semiconductor.
Valence electrons are the electrons present in the outermost shell or valence shell of an atom. They participate in chemical bonding and determine the properties of an element. The number of valence electrons of an atom is used to predict the chemical behavior of an element.
Semiconductors and its characteristics
Semiconductors are materials that have electrical conductivity between conductors (metals) and insulators (non-metals). They have four valence electrons in their outermost shell. When a small amount of impurity is added to a semiconductor, it becomes a good conductor of electricity. This process is called doping.
Explanation of the answer
Since semiconductors have four valence electrons in their outermost shell, the answer to the given question is option A, which states that the substance is usually a semiconductor. The electrical conductivity of semiconductors can be modified through the process of doping, which makes them useful in the production of electronic devices such as transistors, diodes, and solar cells.
Conclusion
In conclusion, the number of valence electrons in an atom is essential in predicting the chemical behavior of an element. The presence of four valence electrons in semiconductors makes them useful in the production of electronic devices. Therefore, the correct answer to the given question is option A, which states that the substance is usually a semiconductor.
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If the number of valence electrons of an atom is 4 then the substance is usually?a)semiconductorb)an insulatorc)A conductord)None of the aboveCorrect answer is option 'A'. Can you explain this answer?
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