Quantum Mechanics Flashcards
3 basic ideas of QUANTUM MECHANICS
- atoms/molecules ONLY EXIST at certain energy states
- there is CHANGE in ENERGY upon absorption and emission of light
- the ALLOWED ENERGY STATES are described by QUANTUM NUMBERS
definition of ORBITAL (2)
- REGION in atom where e- is most probable
- described by n, l, and ml
maximum # of e- that a region can hold
2
QUANTUM NUMBERS
MAIN energy level/shell of e- (radius lines around nucleus)
principle qn (n)
QUANTUM NUMBERS
describes the size of an orbital
principle qn (n)
QUANTUM NUMBERS
takes integer value starting from 1
principle qn (n)
QUANTUM NUMBERS
subshells
azimuthal qn (l)
QUANTUM NUMBERS
describes shape of an orbital
azimuthal qn (l)
QUANTUM NUMBERS
the s, p, d, f orbitals
azimuthal qn (l)
QUANTUM NUMBERS
has values 0 to n-1
azimuthal qn (l)
find the subshell for the respective azimuthal values:
l = 0
l = 1
l = 2
l = 3
s
p
d
f
how many orbitals per subshell?
s = 1
p = 3
d = 5
f = 7
QUANTUM NUMBERS
spatial orientation
magnetic qn (ml)
QUANTUM NUMBERS
covers # of degenerate (same energy) orbitals per subshell
magnetic qn (ml)
QUANTUM NUMBERS
has values from -l to +l
magnetic qn (ml)
