Ch 6 terms Flashcards
Electronegativity
ability of an atom in a molecule to attract the shared electrons in a chemical bond
Covalent bond
bond between 2 non-metals
Ionic bonding
bond between cation and anion
Metallic bonding
Electron C model
from left to right electronegativity….
increases
from top to bottom electronegativity…
decreases
Whats a formal charge?
Keeps track of E. Comparison #VE with #E assigned in Lewis structure
How do you calculate a formal charge?
(VE in free atom) - (VE assigned to that atom in Lewis structure)
More electronegative atoms have a _____ formal charge.
lower
Resonance structures
What is the model used to predict molecule shape?
Valence
Shell
Electron
Pair
Repulsion
What is a isotope?
elements/ compounds with same number of protons, and a different number of neutrons.
What is a structural isomer?
Molecules that have the same chemical formula but different arrangements of their atoms.
Electron group
Set of electrons occupying inner atomic region.
Ligand
atom/group of atoms bonded to an inner atom
Steric number (SN)
On inner atom: number of ligands plus the number of lone pairs
E.G.G
Electron Group Geometry
M.G
Molecular Geometry
EA
from left to right EA _______
increases
How many bonds does Alkane have?
1
How many bonds does Alkene have?
2
How many bonds does Alkyne have?
3
Electron affinity
