Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 06 Feb 2018 My Price 7.00

Electron drift mobility

Effective number of conduction electrons per atom

 

a. Electron drift mobility in tin (Sn) is 3.9 cm2 V-1 s-1. The room temperature (20 °C) resistivity of Sn is about 110 nΩ m. Atomic mass Mat and density of Sn are 118.69 g mol-1 and 7.30 g cm-3, respectively. How many " free" electrons are donated by each Sn atom in the crystal? How does this compare with the position of Sn in Group IVB of the Periodic Table?

b. Consider the resistivity of few selected metals from Groups I to IV in the Periodic Table in Table 2. 7. Calculate the number of conduction electrons contributed per atom and compare this with the location of the element in the Periodic Table. What is your conclusion?

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Maurice Tutor
(5)
Status NEW Posted 06 Feb 2018 08:02 PM My Price 7.00

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