AP Chemistry

Metal + Metal
Metallic bond
metal + nonmetal
ionic bond
nonmetal + nonmetal
covalent bond
When are acids ionic?
Only when dissolved
Many ions can be explained because they have gained or lost electrons and attain a ___________.
Noble Gas Configuration
After ions form, they stick together in a ___________ because opposites attract.
Crystal Lattice
The covalent bond between two atoms depend on what 3 things?
1. Balance of attractions between one atom’s positive nucleus and the other atom’s negative electrons
2. Proton-proton repulsions
3. Electron-electron repulsions
What happens if two atoms have half-filled orbitals?
The interactions balance at a SMALL ENOUGH DISTANCE so the electrons can be close to both nuclie at the same time. THIS IS CALLED A COVALENT BOND
What is a Lewis symbol?
the atomic symbol surrounded by valence electrons
In a Lewis Symbol, what do the four sides represent?
The four valence orbitals.
What is the difference in writing the Lewis symbols for positive ions and neg. ions?
Positive ions show no valence electrons
Negative ions show an octet
What is the difference in writing the Lewis symbols for positive ions and neg. ions?
Positive ions show no valence electrons
Negative ions show an octet
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