| ⇦ | 
| ⇨ |
C and Si both have same lattice strcture, having 4 bonding electron in each. However, C is insulator whereas Si is intrinsic semiconductor. This is because:
Options
(a) In case of V the valence band is not completely filled at absolute zero temperature.
(b) In case of C the conduction band is partly filled even at absolute zero temperature.
(c) The four bonding electrons in the case of C lie in the second orbit, whereas in the case of Si they lie in the third.
(d) The four bonding electrons in the case of C lie in the third orbit, whereas for Si they lie in the fourth orbit.
Correct Answer:
The four bonding electrons in the case of C lie in the second orbit, whereas in the case of Si they lie in the third.
Explanation:
Electronic configuration of ⁶C = 1s², 2s², 2p²
The electronic condiguration of ¹⁴Si = 1s², 2s², 2p⁶, 3s², 3p²
As they are away from nucleus, so effectg of nucleus is low for Si even for Sn and Pb are most mettalic.
Related Questions: - Energy in a current carrying coil is stored in the form of
- When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles
- λ₁ and λ₂ are used to illuminate the slits. β₁ and β₂ are the corresponding fringe
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
- Number of electrons in one mC charge, given e=1.6×10⁻¹⁹ C, will be
Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Energy in a current carrying coil is stored in the form of
- When ₉₀Th²²⁸ transforms to ₈₃Bi²¹², the number of emitted α and β particles
- λ₁ and λ₂ are used to illuminate the slits. β₁ and β₂ are the corresponding fringe
- A magnetic needle suspended parallel to a magnetic field requires √3J of work
- Number of electrons in one mC charge, given e=1.6×10⁻¹⁹ C, will be
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply