Refers to ability for an atom in a covalent framework to attract electron density to itself. Do not conflate with electron affinity, which is the ability of a lone atom (or molecule) to attract an electron to itself. Both are measured in joules/mole.
Questions tagged [electronegativity]
242 questions
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Is there a mathematical formula for electronegativity?
If we lost all the numerical values we have for the electronegativity of elements, is there any mathematical formula that can be used to re-calculate them based on proton (and neutron) numbers alone? For example, if I had no way to look up the…
Henry Stone
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Why is the inductive effect for a protonated amino group greater than that of a nitro group?
Why does $\ce{NH3+}$ have a higher $-\ce{I}$ effect ( inductive effect) than $\ce{NO2}$ even though oxygen is more electronegative? Does it have something to do with positive charge on $\ce{N}$?
Irrational 3.14
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What is the best Electronegativity cutoff for my calculator?
I have written a Chemical Bond Polarity Calculator application, which many students use for their homework. I sometimes get questions from these students as to why the cutoff I use is 2.0, and not some other number between 1.7 and 2.1. I…
Greg Thatcher
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Is Pauling electronegativity well-defined?
Pauling's definition of electronegativity defines the difference of electronegativity between two elements.
Suppose three elements A, B, and C. Then we can calculate $ϰ_a - ϰ_b$, $ϰ_b - ϰ_c$, and $ϰ_c - ϰ_a$ independently. Is the sum of the three…
Apple Orange
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Would gold have the negative charge in gold phosphides?
It should make sense that phosphorus has the positive charge,and gold itself
should have the negative charge in gold phosphide(and for any other gold phosphides) because phosphorus has a lower electronegativity than gold (phosphorus is 2.19, gold is…
Bruh Moments
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Electronegativity difference value
What is the exact electronegativity differece value of determinig whether a compound is ionic or covalent? Is it 1.7 or 2.1?
Namina Wijetunga
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electronegativity and how it relates to bond strength
my question is, if the strength of the bond between two atoms increases as the difference in electronegativity increases as well.
so say, a H-F bond would be stronger than a O-H bond.
I'm a little confused because I know that acidity increases…
john clastings
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Why does Pb have a higher electronegativity than Sn?
I recently learnt that electronegativity generally decreases as I move down a group and from right to left within a period. However, according to the table below, Pb has an electronegativity of $2.33$, which is higher than $1.96$ of Sn. There are…
Larry
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Intramolecular or intermolecular?
I am extremely confused about these types of forces.
Some websites state that the forces in the covalent bonds of carbon dioxide are inter. Other websites say they are intra?
Also, some websites say that the electrostatic bond between ionic…
daniel
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Electronegativity of Potassium (Pauling)
Just a little question, I was taught that the electronegativity of potassium[K] is 1, but I recently discovered most internet resources say 0.82. Some even say both. What is the actual electronegativity of potassium, 0.82 or 1?
Kloppie5
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Why is fluorine one of the most electronegative atoms even though it doesn't have the largest effective nuclear charge?
Why doesn't electronegativity increase as the effective nuclear charge increases? Most atoms with a higher atomic number than fluorine have a higher effective nuclear charge. However, flourine is a more electronegative atom.
henrey2306
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What is boron classified as a electronegative element and a electropositive element?
What is boron classified as a electronegative element or a electropositive element?
Is electronegativity a relative concept ? Why is it that sometimes we treat Boron as an electronegative element and sometimes as a electropositive element?
Vedant
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