Electronegativity

Key Questions

• How can electronegativity be used to determine the type of bond?

  Answer:

  It can determine if a molecule is polar or not...

  Explanation:

  Electronegativity difference between two atoms in a bond can determine what type of bond is used. Note that this usually only applies to covalent and ionic bonds.

  The general rule is that:

  #Delta"EN">2, "the bond is ionic"#

  #0.5<=Delta"EN"<2, "the bond is polar covalent"#

  #Delta"EN"<0.5, "the bond is non-polar covalent"#

  Source:

  https://www.chemteam.info/Bonding/Electroneg-Bond-Polarity.html

  Nam D. · 1 · May 15 2018
• What is electronegativity?

  Answer:

  #"Electronegativity is conceived to be the ability......"#

  Explanation:

  Electronegativity is conceived to be the ability of atom involved in a chemical bond to polarize electron density towards itself. There are various scales, of which the Pauling scale was the earliest, and it is still most widely used. Pauling originally based his scale on ionization energies, and electron affinities. He then normalized the scales so that they gave values roughly between #0-4#.

  Electronegativity is known to INCREASE across a Period, from left to right as we face the Table (we ignore the Noble Gases, and clearly this phenomenon may be attributed to increasing atomic number), and DECREASE down a Group. And thus nitrogen, oxygen, and fluorine are the more electronegative atoms.

  anor277 · 3 · Feb 25 2017

• What is the unit of measurement used for electronegativity?
• What is the electronegativity for an ionic bond?
• What is the electronegativity for a covalent bond?
• How do you find electronegativity on the periodic table?
• What is electronegativity?
• How can electronegativity be used to determine the type of bond?
• What is the difference in electronegativity between magnesium and chlorine when they react to form magnesium chloride?
• Question #fa03c
• Question #e37e4
• Question #e6518
• Question #70261
• Question #c42a5
• With respect to #H-H#, #O-H#, #N-N#, #C-O#, #C-H#, #N-H#, and #C-C# bonds, how can you classify each bond in terms of covalency, and polarity?
• Based on electronegativity values, which bond has the highest degree of ionic character: H—S, Si—Cl, or Cs—Br?
• What is #"polarity"#?
• Why is that, in terms of electronegativity, a #C-O# bond in #CO_2# is more polar than the #F-F# bond in #F_2#?
• Question #00b4f
• Question #98a2f
• What are the elements #S, F, Se# in order of decreasing electronegativity?
• Does basicity always vary inversely with ionic atomic radius???
• Question #e175e
• Does acid-strength correlate to the electronegativity of the counter ion for the hydrogen halides?
• Why is basic character inversely proportional to oxidation number?
• Is there a direct proportionality between base strength and ionic radius for anions in aprotic solvents?
• P.S./Chem.–Aug. ’15 40 Which statement explains why a C–O bond is more polar than a F–O bond?
• What element has the highest electronegativity?
• Please let know how is Electronegativity value in Halogen family? I am really unclear. Thank you.
• How do you determine which atom within a group has the greatest attraction for the electrons in a chemical bond?
• By what property is electronegativity determined?
• Which one is higher based on electronegativity, Ca or Na?
• What does it mean when one atom has a higher electronegativity?
• Question #00965
• Question #cf092
• What can the electronegativity difference between the atoms in a molecule of HCI can be used to determine?
• Why does the chlorine atom in hydrogen chloride acquire a slightly negative charge?
• How do you use electronegativity values and the chemical formula of a substance to tell if the substance is nonpolar covalent, polar covalent, coordinate covalent, or ionic.?
• The electronegativity difference between all hydrocarbons is so small that we expect these molecules to be what?
• What is the electronegativity difference in a homonuclear diatomic molecule?
• Do highly electronegative atoms form covalent bonds?
• Why does #"electronegativity"# different from #"electron affinity"#?
• How do you use electronegativity values to determine the one element that always has a negative oxidation number when it appears in any binary compound?
• How can we know that which element is more electronegative than other ? I've never come across any such formula or trick for this,except learning it by practice. Please tell if you know any.
• Question #7c119
• Question #6623e
• You see the symbols "CO" in a newspaper article. According to the list of elements inside the back cover of this book, what do these symbols mean?
• Using only electronegativity, which bond would have the greatest percent ionic character?
• Question #fcd25
• Do atoms with higher electronegativity for positive or negative ionic bonds?
• In an ionic bond, the atom with the highest electronegativity will always form what type of bond?
• What type of (covalent or ionic) would you expect to form between two atoms of somewhat bond high electronegativity?
• What is the difference in electronegativity in a #C-C# bond? What type of bond is it?
• If ammonia and hydrogen chloride are room temperature gases, how are aqueous solutions of each substance prepared?
• How would you describe the electronegativity of an element?
• What is the electronegativity of an element?
• How would you describe the electronegativity of an element?
• What kind of element is low in electronegativity?
• With respect to the Periodic Table, how does electronegativity evolve with respect to the individual elements?
• What is #"electronegativity"#?
• Question #89780
• Is electronegativity quantifiable on an absolute scale?
• Question #eefa2
• How does #"electron gain enthalpy"# evolve with respect to the Periodic Table?
• Explain electronegativity? and how it can justify why a metal will lose electrons and a nonmetal will gain electrons.