Arrows

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Tiffany_Luu_1F
Posts: 10
Joined: Wed Sep 21, 2016 2:58 pm

Arrows

Postby Tiffany_Luu_1F » Sun Mar 05, 2017 12:53 am

What is wrong with having the arrows on the element?

Jasmine Cha 1A
Posts: 22
Joined: Wed Sep 21, 2016 2:59 pm

Re: Arrows

Postby Jasmine Cha 1A » Sun Mar 05, 2017 12:54 am

The electrons are transferred from the bond that is broken, so you want to have the arrow pointing from the bond being broken to the element receiving the electrons (electrophile).

Marissa Petchpradub 2F
Posts: 15
Joined: Wed Sep 21, 2016 2:56 pm

Re: Arrows

Postby Marissa Petchpradub 2F » Sun Mar 05, 2017 10:29 pm

To add on, you draw the arrows from the bond to the element (which tends to be more electronegative) and draw arrows from the lone-pair electrons of an element (nucleophile, usually an ion) to the element that would be receiving the electrons.

Julia Nakamura 2D
Posts: 33
Joined: Wed Sep 21, 2016 2:57 pm

Re: Arrows

Postby Julia Nakamura 2D » Mon Mar 06, 2017 3:05 pm

Basically, the arrow needs to be drawn from the source of the electron (lone pairs, double bonds, or triple bonds) to where the electrons are going.

Kaitlin_Ryan_ 3K
Posts: 28
Joined: Fri Jul 15, 2016 3:00 am

Re: Arrows

Postby Kaitlin_Ryan_ 3K » Mon Mar 06, 2017 3:50 pm

Also remember that a half-headed arrow means the transfer of only 1 electron, while a double-headed arrow means the transfer of 2 electrons.


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