What are nuclear forces within an atom ( I dont want an answer copied and pasted from google)

Nuclear forces (also known as nuclear interactions or strong forces) are the forces that act between two or more nucleons. They bind protons and neutrons (“nucleons”) into atomic nuclei. The nuclear force is about 10 millions times stronger than the chemical binding that holds atoms together in molecules.

let that person have a turn to speak : )

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).