Assuming it is spherical, such a fragment would have a volume of 4.19x10^-6 cm^3. A neutron star has a density on the order of 5x10^14 g/cm^3. At this density, the fragment would have a mass of roughly 2000 metric tons.
A neutron star is estimated to have a radius of about 12 km. Note that a mass greater than that of our Sun is concentrated in this fairly small volume.
Answer is 1
The black hole with a mass of 3 solar masses has the largest radius among the objects listed. This is because the radius of a black hole is determined by its mass and the Schwarzschild radius formula, which dictates that the radius of a black hole increases with its mass.
Neutron has mass nearly 1,840 times the mass of the electron.
The mass of neutron is similar to the mass of proton, but not equal !
If you mean in the same volume, only a tiny fraction of Earth - the neutron star is much smaller. The radius of a typical neutron star is perhaps 12 kilometers. In comparison, the Earth has a radius of about 6371 kilometers - that makes Earth's volume about 150 million times greater. (On the other hand, the neutron star has a much greater mass than Earth.)
1 solar mass black hole (smallest) 1 solar mass white dwarf 1 solar mass star 1.5 solar mass neutron star (largest)
The relative mass of a neutron compared with a proton is one.
the neutral or no charge particle of an atom:it is located in the nucleus;has the same mass as the proton.
The neutron has no charge, therefore the charge to mass ratio for the neutron is zero.
A neutron has a zero electric charge and has a mass slightly greater than that of a proton. A proton and an electron can be fused to create a neutron, and a neutron decays into a proton and an electron (and a bit of something else). More details about the neutron can be had by using the link to the Wikipedia article on this "building block" of the atom.
Mass no-the no of proton=no of neutron