quanta definition chemistry
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Quantum Definition in Physics and Chemistry By Anne Marie Helmenstine, Ph.D. Definition: A quantum is a discrete packet of energy or matter. Quantum also means the minimum value of a physical property involved in an interaction.For example: the quantum of charge is the charge of an electron.Alternate Spellings: plural: quanta.y Anne Marie Helmenstine, Ph.D. Definition: A quantum is a discrete packet of energy or matter. Quantum also means the minimum value of a physical property involved in an interaction.
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What is Atom at·om. n. 1. A unit of matter, the smallest unit of an element, having all the characteristics of that element and consisting of a dense, central, positively charged nucleus surrounded by a system of electrons.
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Chemistry Is Everywhere In more formal terms chemistry is the study of matter and the changes it can undergo. Chemists sometimes refer to matter as ‘stuff’, and indeed so it is. Matter is anything that has mass and occupies space. Which is to say, anything you can touch or hold.
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- Check your grammar now! : a state of a physical system (such as an atomic nucleus, an atom, or a molecule) that is higher in energy than the ground state.
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quantum theory Etymology: L, quantum, how much; Gk, theoria, speculation. (in physics) the theory dealing with the interaction of matter and electromagnetic radiation, particularly at the atomic and subatomic levels, according to which radiation consists of small units of energy called quanta.
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- qualitative definition: The definition of qualitative refers to measurements of the characteristics of something, as opposed to measurements based on the quantity of something. (adjective) When you judge something based on how good or bad it is, rather tha...
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- Medical Definition of QUANTITATIVE. 1. : of, relating to, or expressible in terms of quantity. 2. : of, relating to, or involving the measurement of quantity or amount. — quan·ti·ta·tive·ly adverb.
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- exists and is an alternate of . Used in science, as opposed to qualitative, quantitative means something that can be put into numbers, like: mass, density, volume. While qualitative mean thing that must be described in words, like: colour, softness..etc. Used in science, as opposed to qualitative, quantitative means something that can be put into numbers, like: mass, density, volume.
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Description and Brand Names Descriptions. Naltrexone is used to help narcotic dependents who have stopped taking narcotics to stay drug-free. It is also used to help alcoholics stay alcohol-free. The medicine is not a cure for addiction.altrexone will cause withdrawal symptoms in people who are physically dependent on narcotics. Naltrexone treatment is started after you are no longer dependent on narcotics. The length of time this takes may depend on which narcotic you took, the amount you took, and how long you took it.
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- Define quantitative: of, relating to, or expressible in terms of quantity — quantitative in a sentence of, relating to, or expressible in terms of quantity; of, relating to, or involving the measurement of quantity or amount…
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displacement A chemical reaction in which an atom, a radical, or a molecule replaces another in a compound. displacement. Chemistry A chemical reaction in which an atom, radical, or molecule replaces another in a compound. Physics A vector, or the magnitude of a vector, that points from an initial position (of a body or reference frame) to a subsequent position. The weight or volume of a fluid displaced by a floating body, used especially as a measurement of the weight or bulk of ships.
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chemistry chemistry chem·is·try (kěm'ĭ-strē) n. Abbr. chem. The science of the composition, structure, properties, and reactions of matter, especially of atomic and molecular systems. The composition, structure, properties, and reactions of a substance.
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- › chemistry If a ​substance, esp. a ​liquid, is volatile, it will ​change ​easily into a ​gas: volatile ​chemicals. volatility noun [U] us /ˌvɑl·əˈtɪl·ɪ·t̬i/ › Volatility in ​wheat on ​Wednesday resulted in a single-day ​trading ​record in Kansas City. noun [U] us /ˌvɑl·əˈtɪl·ɪ·t̬i/.
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Physical quantity A physical quantity is a physical property of a phenomenon, body, or substance, that can be quantified by measurement.
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- (kwŏn'təm) Plural quanta. A discrete, indivisible manifestation of a physical property, such as a force or angular momentum. Some quanta take the form of elementary particles; for example, the quantum of electromagnetic radiation is the photon, while the quanta of the weak force are the W and Z particles. See also quantum state.
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photon definition chemistry A photon is an elementary particle, the quantum of the electromagnetic field including .... In chemistry and optical engineering, photons are usually symbolized by hν, the energy of a photon, where h is Planck's constant and the Greek letter ν ...
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Qualitative Analysis Definition Qualitative Analysis Definition: The determination of the nature of the chemical species in a sample. Qualitative analysis can tell you whether an atom, ion, or compound is present or absent in a sample, but it does not provide information about its quantity (how much). Qualitative analysis is a set of analytical chemistry techniques. It involves chemical tests, such as the Kastle-Meyer test for blood or the iodine test for starch. Another common qualitative test, used in inorganic chemical analysis, is the flame test.
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- Changes of energy, such as the transition of an electron from one orbit to another around the nucleus of an atom, is done in discrete quanta. Quanta are not divisible. The term quantum leap refers to the abrupt movement from one discrete energy level to another, with no smooth transition. There is no ``inbetween''.
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Chemistry In chemistry, matter is defined as anything that has rest mass and volume (it takes up space) and is made up of particles. The particles that make up matter have rest mass as well - not all particles have rest mass, such as the photon. Matter can be a pure chemical substance or a mixture of substances.
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Molecule 3D (left and center) and 2D (right) representations of the terpenoid molecule atisane. A molecule (/ˈmɒlɪkjuːl/ from Latin moles mass) is an electrically neutral group of two or more atoms held together by chemical bonds. Molecules are distinguished from ions by their lack of electrical charge. However, in quantum physics, organic chemistry, and biochemistry, the term molecule is often used less strictly, also being applied to polyatomic ions.
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What is a Photon? - Definition, Energy & Wavelength A photon is the quantum of electromagnetic radiation. The term quantum is the smallest elemental unit of a quantity, or the smallest discrete amount of something. Thus, one quantum of electromagnetic energy is called a photon. The plural of quantum is quanta.
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molecule 1 The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms; a group of like or different atoms held together by chemical forces.  A small particle; a tiny bit.
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molecule Chemistry, Physics. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2. Chemistry. a quantity of a substance, the weight of which, measured in any chosen unit, is numerically equal to the molecular weight; gram molecule. 3. any very small particle.
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The Coriolis Effect Without premise 3, you can still pretty convincingly describe the Coriolis Effect on objects moving due north or due south. The Earth rotates to the east at an effectively constant angular velocity, but different latitudes have different linear speeds.
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- 1. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2. a quantity of a substance, the weight of which is numerically equal to the molecular weight; gram molecule. 3. any very small particle.
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General Chemistry/Atoms and Molecules General Chemistry/Atoms and Molecules - Atoms. 1  An atom is the smallest unit of matter that has the properties of an element. It is composed of a dense core called the nucleus and a series of outer shells occupied by orbiting electrons. 2  The nucleus, composed of protons and neutrons, is at the center of an atom.