Assertion: neutron's mass | /r/HasProperty | equal
Facets:
value: nearly
type: DEGREE
value: for the neutron-antineutron system
type: OTHER
value: within 9×10-5
type: LOCATION
value: to the number of electrons
type: OTHER
value: to the number of protons
type: OTHER
value: approximately
type: DEGREE
Source sentences:
text: In this reaction, the resulting proton and neutron have about equal kinetic energy, since their masses are about equal.
text: The atomic mass of an atom is approximately equal to the number of protons plus the number of electrons, since the mass of electrons is practically negligible.
text: For the neutron-antineutron system, the masses are equal to within 9×10-5.
text: The nucleus is made up of neutrons and protons so, it may be expected that the mass of the nucleus is equal to the total mass of its individual protons and neutrons.
text: Protons and neutrons have nearly equal masses, and their combined number, the mass number, is about equal to the atomic mass of an atom.