Term
How to determine lone pair? |
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Definition
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Term
Characteristics of
Nucleus
Electron |
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Definition
Nucleus- lg mass, sml vol
e- - smal mass, lg vol
(proton most heavy--> greatest mass) |
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Definition
| fill parallel before filling one |
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Definition
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Term
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Definition
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Term
| How do you determine the # bonds possibly in a molecule? |
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Definition
count valence (e-'s ) and find closest full octet
or
( 8 - e-'s in valence shell(G#)= # bonds possible) |
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Term
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Definition
| bonding increases stability of molecule due to lower E state |
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Term
sp3- characterics
shape
angle
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Definition
4 bonds to central atom
tetrahedral- 109.3 |
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Term
sp2- characteristic
shape
angle |
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Definition
has double bond
trigonal planar
120 degrees |
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Term
sp
characteristic
geometry
angle |
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Definition
has tripple bond
linear
180 |
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Term
| how to easily determine structure hybridization, geometry, angle |
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Definition
count number of bound atoms
4- sp3
3-sp2
1- sp |
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Term
***(Asking)**3 molecules who are exceptions which eventhough has lone pairs, are considered sp3? |
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Definition
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Term
3 bonds and 1 lone pair is what geometry? |
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Definition
| pyramidal , no tetra b/c lone pairs pushingbonds closer, decreasing angle |
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Term
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Definition
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Term
| Why can we not have He2 in MO theory? |
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Definition
| b/c MO structure states we would have to pur e- in sigma*, which incrase energy of the molecule--> destabalizing |
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Term
| any e- in the anti* bond will cause a increase in e- --> increasing sinstability |
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Definition
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Term
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Definition
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Term
| how do you solve for ground state config? |
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Definition
1 s _
2s _
2p_ _ _
3s _
3p _ _ _
4s _
3d _ _ _ _ _
4p _ _ _
use atomic to fill in orbitals
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Term
what comes after
3s 3p ... then ... |
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Definition
3s _
3p _ _ _
4s _
3d _ _ _ _ _
4p _ _ _ |
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Term
| what does the term outer shell of Nitrogen refer to? |
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Definition
it means how many electrons are available to bond or be a LP
ie tripple bonded N -C, Nhas 8 e-
- 6 bonding 2- nonbonding |
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Term
| how to calculate bond angle of planar |
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Definition
360 / number of sides from H to bond adjacent to
120- planar |
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Term
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Definition
| planar- each side of benzene is a planar |
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Term
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Definition
A covalent bond is a bond between two non-metallic elements. This means that they share electrons inside the molecules. OR A type of chemical bond in which there is mutual sharing of electrons between two atoms is called covalent bond. It is furthur classified into single, double, and triple covalent bond
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Term
| Define ionic bond (example) |
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Definition
In an ionic bond, the atoms are bound together by the attraction between oppositely-charged ions. For example, sodium and chloride form an ionic bond, to make
NaCl |
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Term
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Definition
| 2 overlapping pi orbitals with the same sign interact |
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Term
| a anti pi bonding occurs when |
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Definition
| 2 overlapping sideways pi bonds with different signs interact |
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Term
| looking at a molecular formula- if asked how valence electrons does somthing have then... |
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Definition
| valence electrons will be 2 per bond and 2 e- LP |
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Term
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Definition
| tetrahedral i think also called trigonal pyramidal |
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