Chemistry 9701 · AS & A Level · Atomic structure

Atomic structure — practice question

Which atom has four times as many neutrons as the $^{7}_{3}\text{Li}$ atom?

  • A$^{40}_{20}\text{Ca}$
  • B$^{24}_{12}\text{Mg}$
  • C$^{31}_{15}\text{P}$
  • D$^{26}_{14}\text{Si}$

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