Definitions for electronegativity
elec·troneg·a·tiv·i·ty

Princeton's WordNetRate this definition:2.0 / 1 vote

1. electronegativity, negativitynoun

   (chemistry) the tendency of an atom or radical to attract electrons in the formation of an ionic bond

WiktionaryRate this definition:4.5 / 2 votes

1. electronegativitynoun

   the tendency, or a measure of the ability, of an atom or molecule to attract electrons and thus form bonds

WikipediaRate this definition:0.0 / 0 votes

1. Electronegativity

   Electronegativity, symbolized as χ, is the tendency for an atom of a given chemical element to attract shared electrons (or electron density) when forming a chemical bond. An atom's electronegativity is affected by both its atomic number and the distance at which its valence electrons reside from the charged nucleus. The higher the associated electronegativity, the more an atom or a substituent group attracts electrons. Electronegativity serves as a simple way to quantitatively estimate the bond energy, and the sign and magnitude of a bond's chemical polarity, which characterizes a bond along the continuous scale from covalent to ionic bonding. The loosely defined term electropositivity is the opposite of electronegativity: it characterizes an element's tendency to donate valence electrons. On the most basic level, electronegativity is determined by factors like the nuclear charge (the more protons an atom has, the more "pull" it will have on electrons) and the number and location of other electrons in the atomic shells (the more electrons an atom has, the farther from the nucleus the valence electrons will be, and as a result, the less positive charge they will experience—both because of their increased distance from the nucleus and because the other electrons in the lower energy core orbitals will act to shield the valence electrons from the positively charged nucleus). The term "electronegativity" was introduced by Jöns Jacob Berzelius in 1811, though the concept was known before that and was studied by many chemists including Avogadro. In spite of its long history, an accurate scale of electronegativity was not developed until 1932, when Linus Pauling proposed an electronegativity scale which depends on bond energies, as a development of valence bond theory. It has been shown to correlate with a number of other chemical properties. Electronegativity cannot be directly measured and must be calculated from other atomic or molecular properties. Several methods of calculation have been proposed, and although there may be small differences in the numerical values of the electronegativity, all methods show the same periodic trends between elements.The most commonly used method of calculation is that originally proposed by Linus Pauling. This gives a dimensionless quantity, commonly referred to as the Pauling scale (χr), on a relative scale running from 0.79 to 3.98 (hydrogen = 2.20). When other methods of calculation are used, it is conventional (although not obligatory) to quote the results on a scale that covers the same range of numerical values: this is known as an electronegativity in Pauling units. As it is usually calculated, electronegativity is not a property of an atom alone, but rather a property of an atom in a molecule. Even so, the electronegativity of an atom is strongly correlated with the first ionization energy, and negatively correlated with the electron affinity. It is to be expected that the electronegativity of an element will vary with its chemical environment, but it is usually considered to be a transferable property, that is to say that similar values will be valid in a variety of situations. Caesium is the least electronegative element (0.79); fluorine is the most (3.98).

ChatGPTRate this definition:0.0 / 0 votes

1. electronegativity

   Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. It refers to the ability of an atom within a molecule to attract the shared electrons in a covalent bond towards itself. The electronegativity value increases from left to right across the periodic table. The most electronegative element is Fluorine. Elements with high electronegativity tend to form negatively charged ions or be found in the right hand side of the periodic table.

WikidataRate this definition:5.0 / 1 vote

1. Electronegativity

   Electronegativity, symbol χ, is a chemical property that describes the tendency of an atom or a functional group to attract electrons towards itself. An atom's electronegativity is affected by both its atomic number and the distance that its valence electrons reside from the charged nucleus. The higher the associated electronegativity number, the more an element or compound attracts electrons towards it. First proposed by Linus Pauling in 1932 as a development of valence bond theory, it has been shown to correlate with a number of other chemical properties. Electronegativity cannot be directly measured and must be calculated from other atomic or molecular properties. Several methods of calculation have been proposed, and although there may be small differences in the numerical values of the electronegativity, all methods show the same periodic trends between elements. The most commonly used method of calculation is that originally proposed by Linus Pauling. This gives a dimensionless quantity, commonly referred to as the Pauling scale, on a relative scale running from around 0.7 to 3.98. When other methods of calculation are used, it is conventional to quote the results on a scale that covers the same range of numerical values: this is known as an electronegativity in Pauling units.

Matched Categories

1. • Chemistry
   • Tendency

How to pronounce electronegativity?

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How to say electronegativity in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of electronegativity in Chaldean Numerology is: 6

2. Pythagorean Numerology

   The numerical value of electronegativity in Pythagorean Numerology is: 3

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=electronegativity
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Electronegativity
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Electronegativity
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=electronegativity