Carbon,Silicon,and Germanium atoms each have four valence electrons. If their bandgaps are represented by $(E_g)_C$,$(E_g)_{Si}$,and $(E_g)_{Ge}$ respectively,which of the following relations is correct?

  • A
    $(E_g)_C > (E_g)_{Si}$
  • B
    $(E_g)_C < (E_g)_{Si}$
  • C
    $(E_g)_C = (E_g)_{Si}$
  • D
    $(E_g)_C < (E_g)_{Ge}$

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