PROTON Meaning and
Definition
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A proton is a subatomic particle that is positively charged and located within the nucleus of an atom. It is one of the fundamental particles that make up matter. With a relative mass of approximately 1 atomic mass unit (amu), protons are slightly heavier than neutrons, which are their neutral counterparts. The number of protons in an atom determines its atomic number and distinguishes it from other elements.
Protons are composed of smaller particles known as quarks. Each proton consists of two up quarks and one down quark, held together by the strong nuclear force. This force is responsible for confining the quarks within the proton, giving it stability. Protons also contribute to the net positive charge of an atom, as they are balanced by an equal number of negatively charged electrons orbiting the nucleus.
In chemical reactions and interactions, protons play a crucial role. Their positive charge attracts negatively charged particles, such as electrons, leading to the formation of chemical bonds. This phenomenon is fundamental in the study of chemistry, as it determines the reactivity and behavior of atoms. Additionally, protons are involved in nuclear reactions, including fusion and fission, which release vast amounts of energy.
Overall, protons are integral components of atoms and have significant implications across various scientific disciplines, from particle physics to chemistry and nuclear science.
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The first trace of the formation of any part or organ in the embryo; anlage, primordium.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Top Common Misspellings for PROTON *
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
Other Common Misspellings for PROTON
Etymology of PROTON
The word "proton" comes from the Greek word "prōton", which means "first" or "foremost". This term was coined by Ernest Rutherford, a physicist, in 1920 to describe the positively charged particle found in the nucleus of an atom, as it was the first-discovered subatomic particle. The word "proton" was chosen to reflect its fundamental nature as one of the building blocks of atomic structure.
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