Package 1 Flashcards
Octet Rule
Most elements want to obtain 8 valence electrons
Exceptions to the octet rule
H, Li, Be, B, Al
Metallic Bonds
The delocalized electrons in a metal are attracted to the negatively charged metal ions
Occurs in all neutral metal atoms
Two elements that have the same electron configuration
Isoelectronic
Oxidation
Losing Electrons
Why do non-metals gain electrons
Small radii, high ionization energy, high electron affinities, large eff
What does group number equal
Charge of the ion
Why is Si 4- not possible?
Large electron electron repulsions
Why does Si 4+ not form during any chemical reactions
Would require too much energy to remove 4 electrons
Si bonds
Covalent
Carbon exception
Can lose or gain 4 electrons, but prefers covalent bonds
When H+ combines with water
It forms an acidic hydronium ion
Most common charge for transition metals
2+
What kind of reaction is ionic bonds
Redox reaction
What are polyatomic ions
Ions that consist of two or more atoms bonded together with covalent bonds
