If the core of a supernova contains about one solar mass the core will become a .?

If the core of a supernova contains about one solar mass, it will likely become a neutron star. This dense remnant forms when the core collapses under gravity, causing protons and electrons to combine into neutrons. Neutron stars are incredibly dense, with a mass greater than the Sun compressed into a sphere only about 20 kilometers in diameter. If the core exceeds around three solar masses, it may collapse further into a black hole.