ionic character
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 72
- Joined: Fri Apr 06, 2018 11:04 am
-
- Posts: 33
- Joined: Mon Apr 09, 2018 1:39 pm
- Been upvoted: 1 time
Re: ionic character
Br has a stronger ionic character than iodine, therefore NaBr is stronger. You can tell apart the stronger ionization by going up and right in the periodic table.
-
- Posts: 72
- Joined: Fri Apr 06, 2018 11:04 am
Re: ionic character
I thought the greater difference in electronegativity corresponds with a greater ionic character? NaBr has a lower difference in electronegativity than NaI doesn't it?
-
- Posts: 47
- Joined: Fri Apr 06, 2018 11:02 am
- Been upvoted: 1 time
Re: ionic character
No NaBr definitely has more ionic character. Br is above I on the periodic table and therefore Br is more electronegative and there is a greater difference between Na and Br than there is between Na and I.
-
- Posts: 64
- Joined: Tue Nov 14, 2017 3:01 am
Re: ionic character
The ionic character which is just Ionic Bonding which to my understanding corresponds to periodic trends in which a bond between two molecules in which a large electronegativity difference exists between the two atoms would cause them to be more electronegative. I hope this helps with any confusion.
-
- Posts: 72
- Joined: Fri Apr 06, 2018 11:04 am
Re: ionic character
I'm just a little confused because this doesn't apply when comparing MgCl2 and CaCl2 because CaCl2 has a greater ionic character.
-
- Posts: 47
- Joined: Fri Apr 06, 2018 11:02 am
- Been upvoted: 1 time
Re: ionic character
That is because Ca has a lower electronegativity than Mg, producing a greater electronegativity difference between that metal and the Cl.
-
- Posts: 64
- Joined: Tue Nov 14, 2017 3:01 am
Re: ionic character
By large electronegativity difference we are referring to the periodic trends on the periodic table. Electronegativity increases as you move from left to right across a period on the periodic table. So the top right-hand corner on the periodic table where Florine is at will be the most electronegative.
-
- Posts: 59
- Joined: Thu Feb 01, 2018 3:01 am
-
- Posts: 31
- Joined: Fri Apr 06, 2018 11:04 am
Re: ionic character
megangeorge-1F wrote:what is the difference between something being ionic or dipole?
I believe the difference between ionic and dipole is that ionic is a force between an ion and polar molecule, while dipole is between a hydrogen bond that is slightly positive on one molecule and slightly negative on another.
Re: ionic character
megangeorge-1F wrote:what is the difference between something being ionic or dipole?
I found this explanation:
"An ion-dipole force is a force between an ion and a polar molecule. A hydrogen bond is a dipole-dipole force and is an attraction between a slightly positive hydrogen on one molecule and a slightly negative atom on another molecule."
Return to “Ionic & Covalent Bonds”
Who is online
Users browsing this forum: No registered users and 11 guests