What elements constitute the core of a star like the Sun immediately after the helium burning phase is completed?

Answer

Carbon and oxygen mixture

For less massive red giants, the helium burning phase generates a mixture primarily composed of carbon and oxygen, which forms the inert core that eventually settles into a white dwarf.

What elements constitute the core of a star like the Sun immediately after the helium burning phase is completed?
astronomystarsFusionred giantshelium