Unit 4 - Chemical Bonding/Structure Flashcards
1
Q
What is the octet rule?
A
The desire of atoms to have a noble gas configuration, having 8 valence electrons.
2
Q
What are isoelectric species?
A
Atoms that are different species (elements), but have the same configuration
3
Q
Which common elements can have an expanded octet?
A
Sulfur, Phosporus, Silicon and Chlorine
4
Q
Which common elements cannot have an expanded octet?
A
Carbon, Nitrogen, Oxygen and Flourine
5
Q
How can you calculate formal charge?
A
FC = number of valence electrons - lone pairs electrons and bonds
6
Q
What is an oxidation state?
A
The charge of an atom when bonding electrons are transferred to electronegative atom.
7
Q
What is a resoance structure?
A
Multiple lewis structures of an isomer that average out to actual structure
