Dear PF Forum, I have question concerning neutron star and star just simply out of curiousity. 1. Can a star reach silicon burning stage then stop. It doesn't continue to iron burning stage. 2. Once a star reach iron burning stage, there's no stopping it to blast into supernova? Is supernova inevitable for iron burning stage? 3. Does the density of neutron star equal to atomic nucleus? These ones I should have googled it, but can't find a definite answer. 4. What is the maximum mass of a neutron star? 5. What is the minimum mass of a neutron star? Thanks.