Chemistry 0620 · IGCSE · Ions and ionic bonds

Ions and ionic bonds — practice question

The diagram indicates the positions of elements P and Q in the Periodic Table. What is the formula of the compound formed between P and Q?

  • APQ
  • B$\text{P}_2\text{Q}$
  • C$\text{PQ}_2$
  • D$\text{P}_2\text{Q}_7$

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