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Carbon, silicon and germanium have four valence electrons each. At room temperature, which of the following statements is the most appropriate?
  • a)
    The number of free electrons for conduction is significant only in Si and Ge, but small in C.
  • b)
    The number of free conduction electrons is significant in C, but small in Si ad Ge.
  • c)
    The number of free conduction electrons is negligibly small in all three.
  • d)
    The number of free electrons for conduction is significant in all three.
Correct answer is option 'A'. Can you explain this answer?
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Carbon, silicon and germanium have four valence electrons each. At ro...
C, Si and Ge have the same lattice structure and their valence electrons are 4. For C, these electrons are in the second orbit, for Si, they are in the third orbit, and for germanium, it is in the fourth orbit. In solid state, higher the orbit, greater the possibility of overlapping of energy bands. Ionisation energies are also less, therefore Ge has more conductivity as compared to Si. Both are semiconductors. Carbon is an insulator.
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Carbon, silicon and germanium have four valence electrons each. At room temperature, which of the following statements is the most appropriate?a)The number of free electrons for conduction is significant only in Si and Ge, but small in C.b)The number of free conduction electrons is significant in C, but small in Si ad Ge.c)The number of free conduction electrons is negligibly small in all three.d)The number of free electrons for conduction is significant in all three.Correct answer is option 'A'. Can you explain this answer?
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Carbon, silicon and germanium have four valence electrons each. At room temperature, which of the following statements is the most appropriate?a)The number of free electrons for conduction is significant only in Si and Ge, but small in C.b)The number of free conduction electrons is significant in C, but small in Si ad Ge.c)The number of free conduction electrons is negligibly small in all three.d)The number of free electrons for conduction is significant in all three.Correct answer is option 'A'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Carbon, silicon and germanium have four valence electrons each. At room temperature, which of the following statements is the most appropriate?a)The number of free electrons for conduction is significant only in Si and Ge, but small in C.b)The number of free conduction electrons is significant in C, but small in Si ad Ge.c)The number of free conduction electrons is negligibly small in all three.d)The number of free electrons for conduction is significant in all three.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Carbon, silicon and germanium have four valence electrons each. At room temperature, which of the following statements is the most appropriate?a)The number of free electrons for conduction is significant only in Si and Ge, but small in C.b)The number of free conduction electrons is significant in C, but small in Si ad Ge.c)The number of free conduction electrons is negligibly small in all three.d)The number of free electrons for conduction is significant in all three.Correct answer is option 'A'. Can you explain this answer?.
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