5

Part of 2008 National Chemistry Olympiad

Problems(1)

2008 USNCO Local #5: Solar Cells

Source:

Which element is the major component in solar cells?
(A)\hspace{.05in}\ce{As}\qquad(B)\hspace{.05in}\ce{Ge} \qquad(C)\hspace{.05in}\ce{P}\qquad(D)\hspace{.05in}\ce{Si} \qquad