A massive collapsed star is a dead star.
A star that has collapsed under gravity and is made of neutrons is called a neutron star. Neutron stars are extremely dense and have a strong gravitational pull due to the collapsed core of a massive star. They are the remnants of supernova explosions.
A collapsed star is a term used to describe a "dead" star, which is a star that has come to the end of its lifetime and just collapses on itself. A black hole
It seems you are referring not to any collapsed star, but a black hole. The "event horizon" is the area from which nothing can escape.
It contains the entire collapsed star, however the star has collapsed to an infinitesimal point (or infinitesimally thin ring if its spinning) singularity, leaving everything around that totally empty except for warped spacetime (which is what causes gravity).
Yes. A black hole is a collapsed star.
A black hole.
Black holes are the result of a large star that has collapsed.
It may become a White Dwarf.
Depending on how big the star was, it could be a white dwarf, a neutron star, or a black hole.
Neutron Stars are stars that have collapsed to the point where electrons and protons are smashed together.
A "white dwarf " star is the most likely. However but you could also get a neutron star or possibly a black hole. It depends on the mass of the original star.