Physics (AS & A Level) · May / June 2022 · Paper 12 · Question 39

Four nuclei are represented below. $^{28}_{14}\text{E}$ $^{25}_{15}\text{G}$ $^{25}_{12}\text{M}$ $^{24}_{13}\text{Q}$ Which statement about these nuclei is correct?

1. AAn uncharged atom of element Q has 24 orbital electrons.
2. BNuclei G and M are isotopes of the same element.
3. CWhen E absorbs a neutron and then emits an α-particle, E transforms into M.
4. DWhen M emits a β⁻ particle, M transforms into Q.

As printed in the paper