This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: The degree to which a substance conducts heat. A measure for current flowing through a semiconductor. Nuclei surrounded by a "sea" of electrons. How easily light bounces off the surface of a substance. Analysis • Which of the following pairs of metal is most likely to form alloys of all compositions? 56 Ba and 31 Ga 50 Sn and 82 Pb 3 Li and 83 Bi • Which of the following pairs of metals is most likely to form alloys of all proportions? 55 Cs and 49 In 82 Pb and 19 K 37 Pt and 79 Au • Which of the following is NOT why alloys are useful to us today? Alloys have lower melting temperatures. have a higher conductivity rate. are less malleable. reduce weight in objects. • How do metals and semiconductors change with increasing temperatures? Metals become less resistive and semicoductors more resistive. Metals and semiconductors become less resistive. None of the above. Check Answers Choose a different chapter....
View Full Document
- Spring '10
- Electron, Fundamental physics concepts, Electrical conductivity, • Semiconductors, high melting points.