How does adding an atom affect the position of existing atoms or lone pairs?
answer
pushes them away from the newly added atom
question
How does adding a lone pair affect the position of existing atoms or lone pairs?
answer
same as adding an atom, pushes them away from the newly added
question
Are adding atoms/ lone pairs similar?
answer
yes, because all electrons repel each other
question
How do the electrons in bonds (bonding domains) differ from lone pairs( non-bonding domains)?
answer
bonded electrons are shared between 2 elements, where lone pairs belong only to the atom they are attached to
question
Can you force the atoms into new configurations by pushing atoms around? What does this suggest about configurations in real models?
answer
no, as soon as you push an atom, other move to keep the same distance between bonds
question
What happens to the bond angle when you add or remove an electron domain?
answer
decreases
question
What is molecular geometry?
answer
3d shape based on # of electron areas around the center element
question
line=
answer
in the plane of the paper
question
wedge=
answer
coming forward, in front of the plane of the paper
question
dash=
answer
going backward, behind the plane of the paper
question
What is the difference between electron geometry and molecule geometry
answer
electron geometry is the sub group of shape that occur when a lone pair of electron is present on center, while molecule geometry is the overall name/shape based on number of areas around center
question
Orbital: the region in space where there is a high _________ of finding the electrons?
answer
probability
question
x,y, and z give the _________ of orbitals?
answer
orientation
question
the bond between 2 atoms is the result of the overlap of their atomic orbitals?
answer
Molecular bond theory
question
the increase in the electron density lies directly between two nuclei
answer
sigma bonds
question
The increase in the electron density lies above and below the axis, connecting the two nuclei?
answer
pi bonds
question
VSEPR stands for?
answer
valence shell electron pair repulsion
question
_______ pairs repel more than ______ pairs.
answer
lone/ bonded
question
This caused the bond angle to be ______ than it would be if no ______ pairs were present.
answer
less/lone
question
4 atoms, 0 LP? bond angle?
answer
tetrahedral/ 109.5
question
3 atoms, 1 LP? bond angle?
answer
tetrahedral trigonal pyramidal/ <109.5
question
2 atoms, 2 LP? bond angle?
answer
tetrahedral bent/ <<109.5
question
1 atom, 3 LP? bond angle?
answer
linear/ 180
question
3 atoms. 0 LP? bond angle?
answer
trigonal planar/ 120
question
2 atoms, 1 LP? bond angle?
answer
trigonal bent/ <120
question
2 atoms, 0 LP? bond angle?
answer
linear/ 180
question
bond has one side positive and one side negative
answer
polar covalent bond
question
bond sides have same charge
answer
non polar covalent bond
question
if the arrows are going in the same direction its ______?
answer
polar molecule
question
molecule that does not have oppositely charged ends is______?
answer
non polar molecule
question
farthest of fluorine?
answer
partial positive
question
closet to fluorine?
answer
partial negative
question
electron attraction measured on a scale
answer
electronegativity
question
number of elements + lone pairs attached to center element
answer
steric number
question
starts positive and points negative
answer
dipole arrow
question
opposites attract
answer
coulombs law
question
letters represent the shape of the orbitals
answer
hybridized orbitals
question
diagram shows how valence electrons are distributed in an atom
answer
lewis structure
question
outermost shell of electrons
answer
valence electrons
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