Certain stars are thought to collapse at the end of their lives, combining their protons and electrons to form a neutron star. Such a star could be…

Certain stars are thought to collapse at theend of their lives, combining their protons andelectrons to form a neutron star. Such a starcould be thought of as a giant atomic nucleus.If a star with a mass equal to that of thesun (of mass 1.99 × 1030 kg) were to collapseinto neutrons, what would be the radius ofthe star?Answer in units of m.