Term
| What's the difference between an ionic and a covalent compound |
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Definition
-ionic: electrons are transferred
-covalents: electrons are shared |
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Term
| two main ways to reach a noble gas configuration in terms of bonding |
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Definition
1. gain or lose electrons
2. share electons |
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Term
| common electron deficient atoms in bonding are |
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Definition
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Term
| an electronegativity difference <0.5 |
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Definition
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Term
| an electronegativity difference between 0.5 and 2.0 |
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Definition
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Term
| an electronegativity difference >2.0 |
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Definition
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Term
| Formal charges on in an ionic bond have to add up to |
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Definition
| the net charge of the compound |
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Term
| Tips for picking best lewis structure with formal charges |
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Definition
1)the lower the overall charge the better
2)check for consistency in atomic trends, negative charges should be on |
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Term
| T/F, in compounds/molecules where resonance exist, we have to draw both resonance structures to accurately represent the molecule |
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Definition
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Term
| Resonance structures differ only in the positions of their ...—not in the positions of their ... |
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Definition
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Term
| Exceptions to the octet rule fall into what three category |
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Definition
1)shortage of electrons
2)odd number of electrons/ free radicals
3)expanded octet |
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Term
| when one atom contributes both electrons to form a bond |
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Definition
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Term
| What is the molecular geometry of a structure with : 2 separate bonds, 1 lone pair |
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Definition
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Term
| What is the molecular geometry of a structure with : 3 separate bonds, 1 lone pair |
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Definition
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Term
| What is the molecular geometry of a structure with : 2 separate bonds, 2 lone pairs |
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Definition
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Term
| What is the molecular geometry of a structure with : 1 lone pair and four separate bonds |
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Definition
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Term
| What is the molecular geometry of a structure with : 2 lone pairs and 3 separate bonds |
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Definition
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Term
| What is the molecular geometry of a structure with : 3 lone pairs and 2 separate bonds |
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Definition
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Term
| What is the molecular geometry of a structure with : 1 lone pair and 5 separate bonds |
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Definition
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Term
| What is the molecular geometry of a structure with : 2 lone pairs and four bonds |
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Definition
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Term
| What is the molecular geometry of a structure with : 3 lone pairs and 3 bonds |
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Definition
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Term
| What is the molecular geometry of a structure with : 4 lone pairs and 2 bonds |
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Definition
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Term
| Each group of valence electrons (includes bonding electrons and lone pairs) around a central atom want to be located as far as possible from one another. This best describes... |
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Definition
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Term
| a ... bond restricts rotation about the bond axis while a ... bond allows almost free rotation |
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Definition
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Term
| ... and ... repel more strongly than single bonds |
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Definition
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Term
| how can we determine the geometry of molecules with more than one central atom? |
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Definition
| Determine the geometries separately |
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Term
| two questions asked when determining if a molecule is polar |
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Definition
1)does the molecule have polar bonds
2)do the polar bonds cancel out
3)does the molecule have lone pairs
4)are the lone pairs opposite to each other/ cancel out? |
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