Distinguishing a coordinate covalent bond

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Ying Yan 1F
Posts: 101
Joined: Fri Aug 02, 2019 12:16 am

Distinguishing a coordinate covalent bond

Postby Ying Yan 1F » Fri Nov 01, 2019 10:41 am

How can I distinguish that a molecule is bonded by a coordinate colvalent bond? Thanks!

AnvitaaAnandkumar_1B
Posts: 56
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Re: Distinguishing a coordinate covalent bond

Postby AnvitaaAnandkumar_1B » Fri Nov 01, 2019 11:19 am

By determining the difference in electronegativity between the elements.

005384106
Posts: 101
Joined: Sat Aug 24, 2019 12:16 am

Re: Distinguishing a coordinate covalent bond

Postby 005384106 » Fri Nov 01, 2019 12:13 pm

How do you know when an atom has more covalent character?

Kaitlyn Ang 1J
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Re: Distinguishing a coordinate covalent bond

Postby Kaitlyn Ang 1J » Fri Nov 01, 2019 12:26 pm

All atoms have some covalent character, but the atoms can have more ionic character (aka less covalent character) if there is a greater difference in electronegativity between the atoms. This also means that atoms with more covalent character (aka less ionic character) has a smaller difference in electronegativity between atoms.

Manav Govil 1B
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Re: Distinguishing a coordinate covalent bond

Postby Manav Govil 1B » Fri Nov 01, 2019 1:14 pm

You have to remember the scale for covalent vs ionic character. If the difference between the electronegativities of the two atoms are less than 1.5, then it is a covalent bond.

Rory Simpson 2F
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Re: Distinguishing a coordinate covalent bond

Postby Rory Simpson 2F » Fri Nov 01, 2019 1:35 pm

In looking at a coordinate covalent bond specifically, where two shared electrons are coming from the same atom, it's probably best to look at the Lewis structure and look at how the bond formed in the first place from reaction (where by looking at the valence shells you can see if a single atom is sharing two electrons from its valence shell).


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