A

\[\ce{^{14}_{6}C}\] y \[\ce{^{14}_{7}C}\]

B

\[\ce{^{35}_{17}Cl}\] y \[\ce{^{31}_{15}P}\]

C

\[\ce{^{11}_{5}B}\] y \[\ce{^{12}_{6}B}\]

D

\[\ce{^{5}_{3}Li}\] y \[\ce{^{6}_{3}Li}\]