Chemical Forums

Please login or register.

Login with username, password and session length

Sponsored links

Pages: [1]   Go Down

Author Topic: Allotropes of Silicon  (Read 3612 times)

0 Members and 1 Guest are viewing this topic.

LHM

  • Full Member
  • ****
  • Mole Snacks: +1/-3
  • Offline Offline
  • Posts: 144
Allotropes of Silicon
« on: January 15, 2011, 10:09:48 AM »

Perhaps I'm making this overly complicated, as I tend to do sometimes, but the question asks which element does NOT occur as a distinct allotrope between 0°C and 150°C, and the answer is silicon. However, I just googled it and it says right here: "Two allotropes of silicon exist at room temperature: amorphous and crystalline." http://education.jlab.org/itselemental/ele014.html

Since room temperature is between 0°C and 150°C, and it is highly unlikely that the answer key is wrong, is there something specific about the definition "distinct allotrope" so that amorphous doesn't count or something? Why is the answer silicon?
Logged

Pages: [1]   Go Up
 

Mitch Andre Garcia's Chemical Forums 2003-Present.

Page created in 0.056 seconds with 23 queries.