Chemistry 9701 · AS & A Level · Atomic structure

Atomic structure — practice question

In which pair do the atoms have the same number of neutrons?

  • A$^{11}_{5}\text{B}$ and $^{12}_{6}\text{C}$
  • B$^{7}_{3}\text{Li}$ and $^{9}_{4}\text{Be}$
  • C$^{24}_{12}\text{Mg}$ and $^{28}_{14}\text{Si}$
  • D$^{14}_{7}\text{N}$ and $^{16}_{8}\text{O}$

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