Final answer:
The atomic models that belong to the same element are ppnnn, pnpn, and npn.
Step-by-step explanation:
The atomic models that belong to the same element are:
- Option 1: ppnnn
- Option 2: pnpn
- Option 3: npn
These atomic models represent the same element because they have the same number and arrangement of protons, neutrons, and electrons. The different combinations of p's and n's in the models represent the arrangement of protons and neutrons in the nucleus, and the arrangement of n's and p's in the models represent the arrangement of electrons around the nucleus.