Chemistry 9701 · AS & A Level · Atomic structure

Atomic structure — practice question

Which particle is made up of 8 protons, 9 neutrons and 10 electrons?

  • A$^{16}_{8} ext{O}^{-}$
  • B$^{16}_{8} ext{O}^{2-}$
  • C$^{17}_{8} ext{O}^{-}$
  • D$^{17}_{8} ext{O}^{2-}$

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