Intro Class Flashcards
(21 cards)
Example of shells
1,2,3,4…
What is a shell?
electrons captured to regions of space with diff distances from nucleus
energy of electron _____ as average distace from the nucleus increases
increases
energy of electron increases as average distace from the nucleus ______
increases
What is an orbital?
math. solutions to a complex equation that describes the distrubiton of electron density in space
Examples of orbitals
s, p, d
How many s orbitals per shell?
one
How many p orbitals per shell?
three
How many d orbitals per shell?
five
Which orbitals does carbon mainly deal with?
s and p
Describe Aufbau principle
orbitals fill from lowest to highest energy
Describe Pauli exclusion principle
only two electrons per orbital and spins must be opposite
Describe Hund’s Rule
add electrons in each orbital before going back and adding another one
Dots represent
valence electrons
Octet rule does not apply to
H or B
Line represents
shared electron pairs
most electronegative element
F-
least electronegative element
Fr
What is the formula for FC?
of valence - # of non bondage - .5 of # of bonding electrons
What is Formal Charge (FC)?
sum of fcs must be equal to overall charge of molecule, all atoms need not be neutral in lewis structure
What are FCs used for?
Used to keep track of e- in molecules
