definition for anions
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Anion: Definition & Examples Video: Anion: Definition & Examples. Ions are charged particles that are important for biological and chemical systems. Anions are ions that have a negative charge. This article discusses anions, their properties, and examples of anions in chemistry and nature.
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- In chemistry, an ionic compound is a chemical compound in which ions are held together in a structure by electrostatic forces termed ionic bonds. The positively charged ions are called cations and the negatively charged ions are called anions.n chemistry, an ionic compound is a chemical compound in which ions are held together in a structure by electrostatic forces termed ionic bonds. The positively charged ions are called cations and the negatively charged ions are called anions.
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How do I tell if a chemical is an anion or a cation? Anions are negative ions (atoms or groups of atoms that have gained one or more electrons), and cations are positive ions (atoms or groups of atoms that have lost one or more electrons). All chemicals are electrically neutral. Anions and cations cannot exist indepently. Charged particles do not exist alone. They always have a partner, an ion of the opposite charge. When dissolved in water, ionic compounds such as table salt (sodium chloride) separate into their two ions (the positive sodium cation and the negative chloride anion) and are surrounded by water molecules. There are equal numbers of each.
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cation cat·i·on. n. An ion or group of ions having a positive charge and characteristically moving toward the negative electrode in electrolysis. [Greek. , something going down, from neuter present participle of. , to go down : , cata- +. , to go; see ei-in Indo-European roots .]. cat′i·on′ic (kăt′ī-ŏn′ĭk) adj.
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- An ion (/ˈaɪən, -ɒn/)[1] is an atom, or a molecule, in which the total number of electrons is not equal to the total number of protons, giving the atom or molecule a net positive or negative electrical charge. An atom, or molecule, with a net positive charge is a cation.
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Definitions &Translations An ion is an atom (or group of atoms) that has lost one or more electrons, giving it a net positive charge (cation), or that has gained one or more electrons, giving it a net negative charge (anion).
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- Positively charged atoms or molecules are called cations and negatively charged atoms or molecules are called anions. Thus cations and anions attract one another. Conversely, cations repel one another as do anions. Electrostatic attraction is indiscriminate. That is a cation can attract more than one anion and visa versa. The result is that cation-anions attractions form a large array that we call an ionic compound or salt.
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Crystal Elements of Color REAL CRYSTAL COLOR WHEEL Summary. Anions are negatively charged ions, and are often formed from atoms or molecules that have more electrons than protons. Anions often combine with cations to make salts, which are important in the human body.
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- -ation. a suffix used to form nouns corresponding to verbs or adjectives ending in-ate 1 (separation); on this model, sometimes used to form nouns from other stems (flirtation; starvation). -ātiōn-, s. of -ātiō = -ā- s. vowel + -tiō -tion ].
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cation cation. 1  a positively charged ion that is attracted to the cathode in electrolysis. 2  any positively charged atom or group of atoms (opposed to anion).
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- Define nonionic: not ionic; especially : not dependent on a surface-active anion for effect — nonionic in a sentence not ionic; especially : not dependent on a surface-active anion for effect… See the full definition
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Ion If an atom gains electrons, it has a net negative charge and is known as an anion. Ions consisting of only a single atom are atomic or monatomic ions; if they consist of two or more atoms, they are molecular or polyatomic ions.
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The Difference Between a Cation and an Anion The difference between a cation and an anion is the net electrical charge of the ion. Ions are atoms or molecules which have gained or lost one or more valence electrons giving the ion a net positive or negative charge.
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Ion Because of their electric charges, cations and anions attract each other and readily form ionic compounds, such as salts. In the case of physical ionization of a medium, such as a gas, what are known as ion pairs are created by ion impact, and each pair consists of a free electron and a positive ion.
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- Compounds that are formed from cations and anions, or ions with negative and positive charge. Ionic compounds are also compounds that are formed from a metal and a non-metal.
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anion Anion. An ion carrying a negative charge owing to a surplus of electrons. Anions in the body include bicarbonate, chloride, phosphate, sulfate, certain organic acids, and certain protein compounds. Mentioned in: Electrolyte Supplements. a negatively charged ion, which is attracted to a positively charged anode, e.g.
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Difference Between Cation and Anion If the ion is formed by a loss of electrons, a positive charge is developed, and if it is formed by a gain of electrons, then a negative charge is imparted to the particle. The process of generation of ions is called ionization. Cation. A cation is an ion with a net positive charge on it.
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What are Negative Ions? Generation and Effect of Anions. Anions (negative ions) are generated in a number of ways, and may be naturally occurring or man-made. Waterfalls, for example, generate millions (if not billions!) of negative ions, which is why the air around waterfalls is so refreshing.
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- Anion vs. Cation. Diffen › Science › Chemistry. An ion is an atom or group of atoms in which the number of electrons is not equal to the number of protons, giving it a net positive or negative electrical charge.
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What is the difference between a atom cation and anion? What is a difference between a cation and anion? Cation is an atom with a positive charge... one or more of its electrons are missing, resulting a positive charge. There are electron orbitals around atoms and each orbital ne … eds certain number of electrons to be 'stable'. anions have one or more extra electrons resulting in a negative charge.
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- A cation is an ion that has a net positive (+) charge as opposed to an anion which has a net negative (-) charge. It can have a single charge or multiple charges.
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Difference Between Cation and Anion Difference Between Cation and Anion. A cation is a positively charged ion resulted by the release of one or more electrons from its shells in the attempt to increase stability. An anion is a negatively charged ion resulted by the acceptance of one or more electrons to its shells in the attempt to increase stability.
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- Melanosis coli is a brownish discoloration of the colon mucosa, caused by the accumulation of pigment in macrophages within the lamina propria. First described in the early 19th century, the pigment was initially thought to be melanin, but it was later found to be lipofuscin.
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The Difference Between a Cation and an Anion Cations and anions are both ions. The difference between a cation and an anion is the net electrical charge of the ion.Ions are atoms or molecules which have gained or lost one or more valence electrons giving the ion a net positive or negative charge. Cations are ions with a net positive charge.ations and anions are both ions. The difference between a cation and an anion is the net electrical charge of the ion.
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Definitions &Translations Definition of oxyanion. oxyanion. An oxyanion or oxoanion is a chemical compound . Oxoanions are formed by a large majority of the chemical elements. The formulae of simple oxoanions are determined by the octet rule.
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- Definition of anon. 1  1 : soon, presently … tomorrow will be here anon. 2  2 : after a while : later more of that anon. 3  3 archaic : at once : immediately.