chapter 7 Flashcards
paulis exclusions principle
no two electrons have the exact same set
what are he 4 quantum numbers
n, l, ml, ms
what is the principal quantum “n” stand for
determines energy level and size (1,2,3,…)
what is the angular momentum quantum # (l)
determines shape (0,1,2, n-1)
what is the magnetic quantum # (ml)
determines “orientation”; (-l,…, l)
what is the magnetic spin quantum # (ms)
only 2 values up or down determines spin (-1/2, 1/2)
what are valence electrons
those in the highest n orbitals
what are core electrons
all the electrons besides the valence electrons
how is reactivity determined
by valence electrons
what is the atomic radii trend
as you go down and to the left it gets larger
up and toward fluorine is smallest
what does higher n mean
larger orbitals
effective nuclear charge formula
Zeff= Z-core
Z is nuclear charge
ionization energy trend
increases moving upward and right toward fluorine
opposite of atomic radii
what is electron affinity
change in energy when gaining an e-