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In this section, we learn about neutrons, a type of subatomic particle that has no electric charge and a mass nearly equal to that of protons. Neutrons are present in the nucleus of almost all atoms except hydrogen. Understanding neutrons is essential for grasping the overall composition and stability of atoms.
In 1932, James Chadwick discovered a new subatomic particle called the neutron, which has no electric charge and a mass nearly equal to that of a proton. Neutrons are integral components of atomic nuclei, which house protons and neutrons together (collectively called nucleons). The presence of neutrons in the nucleus serves to stabilize the atom, influencing its mass but not its charge. Neutrons are symbolically represented as 'n'.
The mass of an atom is thus determined by the total number of protons and neutrons in the nucleus, which is expressed as the atomic mass. As a result, neutrons significantly contribute to determining the mass number of an atom (the sum of protons and neutrons). While the proton carries a positive charge and the electron carries a negative charge, neutrons' neutrality is crucial in preventing electrostatic repulsion among protons, enabling the nucleus to remain stable. Therefore, the study of neutrons is essential to comprehend atomic structure and behavior.
Neutrons: Neutral particles in atomic nuclei essential for stability.
Nucleus: Central structure of an atom comprising protons and neutrons.
Atomic Mass: Comprised of the total number of protons and neutrons.
Neutrons are neutral, stable and sound, in the heart of the atom, they can be found.
Imagine an atom as a party: protons are lively and positive, creating the energy, while neutrons calmly balance things out, ensuring no one fights!
N for Neutron, N for Neutral – Neutrons balance the positive protons!
Example of a neutron: Neutrons are found in the nucleus of carbon, which has 6 protons and 6 neutrons, giving it a mass number of 12.
Example of atomic stability: Neutrons prevent electrostatic repulsion between protons in heavy elements like uranium, contributing to their stability.
Term: Neutron
Definition: A subatomic particle found in the nucleus of an atom that carries no charge.
A subatomic particle found in the nucleus of an atom that carries no charge.
Term: Nucleus
Definition: The central part of an atom consisting of protons and neutrons.
The central part of an atom consisting of protons and neutrons.
Term: Atomic Mass
Definition: The mass of an atom, typically measured in atomic mass units (u), equating to the total number of protons and neutrons.
The mass of an atom, typically measured in atomic mass units (u), equating to the total number of protons and neutrons.
Term: Proton
Definition: A positively charged subatomic particle located in the nucleus of an atom.
A positively charged subatomic particle located in the nucleus of an atom.