Physics (AS & A Level) · May / June 2017 · Paper 11 · Question 38

The table lists the nucleon number and the proton number of various nuclei. The nuclei are represented by the letters L to T. | nucleus | nucleon number | proton number | |---|---|---| | L | 227 | 89 | | M | 226 | 89 | | N | 225 | 89 | | O | 227 | 90 | | P | 226 | 90 | | Q | 225 | 90 | | R | 227 | 91 | | S | 226 | 91 | | T | 225 | 91 | Which row in the following table correctly shows three nuclei of the same element, and three nuclei that have the same number of neutrons? | | same element | same number of neutrons | |---|---|---| | A | L M N | R P N | | B | M P S | R S T | | C | O P Q | M P S | | D | R P N | O P Q |

1. AL M N | R P N
2. BM P S | R S T
3. CO P Q | M P S
4. DR P N | O P Q

As printed in the paper