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Valence electron

  • Thread starter matt222
  • Start date
  • #1
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Homework Statement




calculate how many valence electrons there are in a 1cm3 crystal of silicon?

Homework Equations





The Attempt at a Solution



the outer shell of si element has 4 electrons, i think this is my answer
 

Answers and Replies

  • #2
93
0
No I think you need to know the density of Si, and calculate mass. Convert mass in grams to avagadros number. Each atom has a valence shell.
 
  • #3
99
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every atom does have a valence shell but some are stable gases. careful with the numbers. try using a periodic table to ensure your answer and rmb 1cm3 is 1cm x 1cm x 1cm. dont just x3 it. many people make these mistakes
 

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