Chemistry 5070 · O Level · Simple molecules and covalent bonds

Simple molecules and covalent bonds — practice question

The dot-and-cross diagram shows one molecule of tetrafluorosilane, $\text{SiF}_4$. Only the electrons in the outer shell are included. Which statement is correct?

  • AEach molecule of $\text{SiF}_4$ has exactly 16 pairs of electrons.
  • BIn $\text{SiF}_4$ both the silicon and the fluorine have the same electronic configuration as neon.
  • CMolten $\text{SiF}_4$ will conduct electricity.
  • D$\text{SiF}_4$ has a low melting point.

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