As they studied atomic disintegration, they kept seeing that the atomic number (number of ... there could be a particle with mass but no charge. He called it a neutron, and imagined it as a ...

Despite their small diameters—about 12.5 miles (20 kilometers)—neutron stars boast nearly 1.5 times the mass of our sun, and are thus incredibly dense. Just a sugar cube of neutron star matter ...

It also tells us that chlorine has 18 neutrons (35 - 17) and, as the number of electrons and protons are equal in a neutral atom, chlorine also has 17 electrons. The relative mass of a nucleus is ...

The most suitable source of neutrons for such an application is usually a research reactor. The samples that can be analysed with this method stem from a number of different fields, including medicine ...