a dwarf star
When the star runs out of fuel.When the star runs out of fuel.When the star runs out of fuel.When the star runs out of fuel.
A neutron star is already the remains of a massive star that has run out of fuel.
Neutron stars do not have fuel. A neutron star is a remnant of a star that has already died.
Such a star will first have a supernova explosion, due to instability in the nucleus. Then it will most likely turn into a black hole.
Usually the fact that the star runs out of fuel.
helium
runs out of fuel to fuse
Bellatrix is a fairly massive star, so it may well turn into a black hole. However, it is hard to predict whether an individual star will turn into a black hole; what matters is not the current mass, but how much mass is left over at the end of a star's life, once it runs out of fuel - possibly after a supernova explosion, which may blow much of the star's matter into space.
Does it turn over? Compression, Fuel, Spark?
red giant
A black hole is the result of the gravitational collapse of a massive star. This happens when the star runs out of fuel.
After the sun runs out of fuel is will become a white dwarf, a neutron star, or a black hole.