Chemistry 5070 · O Level · Ion and ionic bonds

Ion and ionic bonds — practice question

In the ionic solid zinc phosphide, $\text{Zn}_3\text{P}_2$, what formula does the phosphide ion have?

  • A$\text{P}^{3-}$
  • B$\text{P}^{3+}$
  • C$\text{P}^{4-}$
  • D$\text{P}^{2+}$

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