Lewis Dot Structures
Bonds
Molecular Geometry
Definitions
Random
100
a simplified electron energy level model
What is a Lewis Dot Structure?
100
the mutual electrical attraction between the nuclei and valence electrons of different atoms, binding them together
What are chemical bonds?
100
3D arrangement of atoms that make up a molecule
What is molecular geometry?
100
attraction between polar molecules. Weaker than ionic forces
What are dipole-dipole forces?
100
allow for physical properties such as conductivity of heat and electricity
What are free floating electrons?
200
pairs represented by dots in the Lewis structure
What are lone pairs?
200
Bonding as a result from the attraction between metal atoms and a surrounding sea of electrons
What is metallic bonding?
200
Valence Shell Electron Pair Repulsion theory
What is VSEPR
200
Hydrogen atoms bonded to highly electronegative atoms (N, O, F, Cl) will form a weak bond to the unshared electrons of a neighboring molecule
What is hydrogen bonding?
200
give up their extra electrons to nonmetals
What are metals?
300
pairs represented by lines on Lewis dot structures
What are bond pairs?
300
form when ions of opposite charges attract to each other
What are ionic bonds?
300
relative repulsion between electron pairs
What is the most important factor in determining geometry?
300
Due to the constant motion of the electrons the distribution can be slightly uneven causing a slight instantaneous pole
What are London Dispersion forces
300
the simplest number of each atom that produces a neutral charge
What is the formula unit?
400
only electrons shown in a Lewis dot structure
What are valence electrons?
400
have even sharing of electrons
What are nonpolar covalent bonds?
400
linear, trigonal planar, tetrahedral
What are some common geometries?
400
These elements do not exist as a single atom; they always appear as pairs
What is diatomic elements?
400
Polar dissolves Polar Nonpolar dissolves Nonpolar
What is "like dissolves like"?
500
placed around element symbol, one at a time, the grouped in pairs as more are added
What are electrons
500
have an uneven sharing of electrons
What are polar covalent bonds?
500
determined by the overall polarity of a molecule
What is a molecule geometry?
500
Composed of positive and negative ions in such a way that the over all charge is neutral.
What are ionic compounds?
500
are so weak they are only considered when discussing nonpolar molecules and noble gases
What are London dispersion forces?
M
e
n
u