Note AcademyNote Academy
Start

Physics (AS & A Level) · May / June 2018 · Paper 12 · Question 39

9702Atoms, nuclei and radiation

Radon-211, $^{211}_{86}$Rn, francium-210, $^{210}_{87}$Fr, and radium-212, $^{212}_{88}$Ra, are three nuclides. How many neutrons does each nuclide have in its nucleus?

  1. A86, 87, 88
  2. B125, 123, 124
  3. C211, 210, 212
  4. D297, 297, 300

As printed in the paper

Show the answer

Correct answer: B. 125, 123, 124

Sit this whole paper →More on Atoms, nuclei and radiation

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.