VESPER and Empirical and Molecular Formulas Flashcards
what is vesper
Valence shell electron pair repulsion
what do electrons do?
rearrange to move further away?
What are the two types of geometry?
Electron pair geometry
-how many areas of electron density
Molecular Geometry
-what a molecule looks like due to interactions of bonds and lone pairs
Bent Shape
2 atom bonds 2 lone pairs asymmetrical
o
/ \
0 0
Linear
2 atoms bonded 0 lone pairs symetrical 0 -0- 0
Triagonal planar
3 0 symetrical 0
|
0
/ \
0 0
Tetrahedral
4 bonded 0 lone pairs 0
|
0 - 0
/ \
0 0
Covalent bonds can be…
single bond- 2 electrons shared
double bond - 4 electrons shared
Tripple bond -6 electrons shared
Polarity
unequal sharing of electrons-one element has a strong pull
Naming covalent Molecules
1.identify the number of atoms in the first element
2.writhe the elements prefix
3.identify the amount of atos in the second element and write its prefix
4. change the second elements ending to ide