What elements are next formed in universe after hydrogen and helium are formed?

After hydrogen and helium, the next elements formed in the universe are primarily lithium, beryllium, and boron. These light elements were created during the Big Bang nucleosynthesis, though in very small quantities. Heavier elements like carbon, oxygen, and nitrogen are primarily formed later in the interiors of stars through nuclear fusion processes. When stars die, they can also produce even heavier elements through supernova explosions or neutron capture processes.