## Diatomic Molecules

(Polar molecules, Non-polar molecules, etc.)

Sean Sugai 4E
Posts: 56
Joined: Wed Sep 11, 2019 12:17 am

### Diatomic Molecules

Why are all diatomic molecules composed of two different elements at least slightly polar?

Andrew Jang 4D
Posts: 50
Joined: Sat Aug 17, 2019 12:18 am

### Re: Diatomic Molecules

because two different elements will have slightly different electronegativities

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

### Re: Diatomic Molecules

Unless they are diatomic molecules or molecules of the same atom, a molecule will never be nonpolar because of differing electronegativities.

Drake Choi_1I
Posts: 58
Joined: Sat Aug 17, 2019 12:15 am

### Re: Diatomic Molecules

When calculating the molar mass of 2 moles $N_{2}$, I calculated the 14.0067 x 4 because I thought it was equivalent to 4 nitrogen atoms. Can someone explain why I'm wrong please? I know now that the molar mass should have been just 14.0067 x 2.

Drake Choi_1I
Posts: 58
Joined: Sat Aug 17, 2019 12:15 am

### Re: Diatomic Molecules

Sorry I read my work incorrectly, I don't need an answer

simmoneokamoto3K
Posts: 50
Joined: Mon Jun 17, 2019 7:22 am

### Re: Diatomic Molecules

Because of their differing electronegativities, the atoms will never be nonpolar because they have differnet charges.

Abby Soriano 1J
Posts: 103
Joined: Sat Aug 24, 2019 12:16 am

### Re: Diatomic Molecules

Unless they are the same element, all diatomic molecules are somewhat polar because every element has at least a slight difference in electronegativity that causes one atom to pull on the shared electrons more than the other.