A neutron is a massive particle with no electric charge. It is a baryon made up of two down quarks and one up quark. Neutrons and protons make up the nuclei of atoms.
The half-life of a neutron outside the atomic nucleus is about fifteen minutes when it emits an electron and an antineutron to become a proton. Neutrons, which have the same mass as protons, are essential for the stability of the atomic nucleus.
A neutron is a massive particle with no electric charge
Electron:
The first evidence of the existence of subatomic particles and that atoms were not indivisible as stated by Dalton’s atomic theory.
Thomson showed in 1897 that electricity was made up of a stream of negatively charged particles, which he called electrons.
Discovery of protons, neutrons, and electrons.
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Proton:
The protons, neutrons and electrons were discovered more than 50 years ago by Ernest Rutherford, James Chadwick and JJ Thomson respectively.
A neutron is a massive particle with no electric charge
is a subatomic particle with a positive elementary electric charge of 1, equal to the absolute value and opposite the sign of the electron, and a mass 1836 times greater than the mass of an electron.
Protons and neutrons are known as nucleons because they make up the nuclei of atoms. In an atom, the number of protons in the nucleus determines the chemical properties of the atom and which chemical element it is. The nucleus of the most common isotope of the hydrogen atom is made up of a proton. Protons having the same charge repel each other.
