4: nomenclature
Chapter 5: Chemical Bonding
5/6: Two atomic theories
Chapter 6:
Random stuff (5/6)
100
1. write the elements with their prefixes
2. the last element gets -ide
How do you name MOLECULAR compounds?
100
Atoms like to have 8 valence electrons around them.
what is the octet rule?
100
Bookkeeping system to keep track of electrons within a lewis structure.
The sum of all of this is zero.
The smaller this is, the better.
What is formal charge?
100
1 sigma and 2 pi bonds
triple bond
100
the measure of electrons in bonding and anti-bonding orbitals.
what is a bond order?
200
name of cation (charge) + base anion -ide
how do you name IONIC compounds?
200
These are the exceptions to the octet rule
Anything below the third row (expanded octets), radicals (odd number of electrons), B (wants 6), and H (wants 2).
200
bond forms from overlap of half-filled orbitals between 2 atoms
What is Valence bond theory?
200
has unpaired electrons, interacts with a magnetic field (magnetic)
what is paramagnetic?
200
This is the orbital with lower energy on a MO diagram.
What is a bonding orbital?
300
the same lewis structures with a different position for delocalized electrons.
What is resonance?
300
∆EN =0-0.4
what is a nonpolar covalent bond?
300
Valence Shell Electron Pair Repulsion
(this uses lewis structures to predict the geometry of the molecule)
what is VESPR theory?
300
Has no unpaired electrons, not magnetic.
what does it mean to be diamagnetic?
300
Represented by a star in a MO diagram, this is the molecular orbital with higher energy
What is anti-bonding?
400
PbCl4
what is lead (IV) chloride?
400
∆EN= 0.5 -1.9
what is a polar covalent bond?
400
Bonds form when atomic orbitals combine to form molecular orbitals.
what is Molecular orbital theory?
400
atomic orbitals can mix together to yield hybrid orbitals.
What is orbital hybridization?
400
Name this: SrI2
what is strontium iodide?
500
magnesium bromide
MgBr2
500
∆EN = 2 or more
what is an ionic bond?
500
1-Bond where overlapping orbitals are pointed along the internuclear axis.
2- overlapping orbitals are peperndicular to internuclear axis
What is the difference between a sigma bond (σ) and a Pi bond?
500
What is the hybridization of Br in BrF3?
HINT: draw the lweis structure, determine the electron geometry, and then find the corresponding hybridization orbital.
sp3d
5 electron groups = trigonal bipyramidal= sp3d
500
What is the electron geometry and molecular geometry of PCl3?
eg: tetrahedral
mg:trigonal pyramidal
