Final answer:
The remnant left behind from a white dwarf supernova (type Ia) is not a neutron star; this statement is false as the white dwarf is completely destroyed in the explosion.
Step-by-step explanation:
The statement that the remnant left behind from a white dwarf supernova (type Ia) is a neutron star is false. A type Ia supernova occurs when a white dwarf in a binary system accumulates enough mass, often from a companion star, to exceed the Chandrasekhar limit and explodes completely. This results in no remnant, as the white dwarf is entirely destroyed in the explosion. Unlike type II supernovae that stem from the collapse of massive stars and can leave behind a neutron star or a black hole, type Ia supernovae, which involve white dwarfs typically composed of carbon and oxygen, do not leave behind a dense core such as a neutron star.