what is its nature?
The neutron has no measurable electric charge, it is influenced by magnetic fields. Its magnetic moment has a negative value, because its orientation is opposite to the neutron's spin.
Neutron

The free neutron has a mass of 939,565,413.3 eV/c, or , or . The neutron has a mean square radius of about , or 0.8 fm, and it is a spin-½ fermion.
The neutron has no measurable electric charge. With its positive electric charge, the proton is directly influenced by electric fields, whereas the neutron is unaffected by electric fields. The neutron has a magnetic moment, however, so the neutron is influenced by magnetic fields. The neutron's magnetic moment has a negative value, because its orientation is opposite to the neutron's spin.
who provided evidence to suggest the existence of the neutron James Chadwick. what is the above mentioned substance? It is a subatomic particle, symbol or , which has a neutral charge. what are its properties? It is dependent on both atomic and neutron numbers.
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Neutron [SEP] Description
Even though it is not a chemical element, the neutron is included in this table. The free neutron has a mass of 939,565,413.3 eV/c, or , or . The neutron has a mean square radius of about , or 0.8 fm, and it is a spin-½ fermion. The neutron has no measurable electric charge. With its positive electric charge, the proton is directly influenced by electric fields, whereas the neutron is unaffected by electric fields. The neutron has a magnetic moment, however, so the neutron is influenced by magnetic fields. The neutron's magnetic moment has a negative value, because its orientation is opposite to the neutron's spin.