Chemistry 9701 · AS & A Level · Atomic structure

Atomic structure — practice question

The symbol for a phosphorus ion is $^{33}_{15}\text{P}^{3-}$. The symbol for a potassium ion is $^{37}_{19}\text{K}^+$. What do these two ions share in common?

  • A1, 2 and 3
  • B1 and 2 only
  • C2 and 3 only
  • D1 only

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