1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ionic bonds

  1. Dec 7, 2008 #1
    in chemistry, how do i know when there is an ionic bond and when a covalent bond, someone told me when the difference between two atoms electronegativity is more than 2.5 there is an ionic bond, but there are molecules with differences in its atoms electroegativity less than 2.5m such as MgO or NaCl
  2. jcsd
  3. Dec 8, 2008 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    There is no clear demarcation between the two. There usually exists some character of both types of bonding in any given bond. Electronegativity differences can be used as an ad hoc method to describe the type but it is http://www.chem1.com/acad/webtut/bonding/polcov.html" [Broken]
    Last edited by a moderator: May 3, 2017
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Ionic bonds