Quantum numbers Flashcards
1
Q
n
principal quantum number
A
overall size and energy of orbital
n = 1,2,3…
2
Q
l
angular momentum quantum number
azimuthal
A
shape of orbital
l = 0,1,2…(n-1)
3
Q
m(l)
magnetic quantum number
A
orientation of orbital
m(l) = -l to l
4
Q
m(s)
spin quantum number
A
orientation of spin of the electron
up = +1/2
down = -1/2
5
Q
letter designations of l l= 0 \_\_\_ l = 1 \_\_\_\_ l = 2 \_\_\_ l = 3\_\_\_
A
0 = s 1 = p 2 = d 3 = f
6
Q
number of orbitals in any sub-level
A
2l +1
7
Q
number of orbital in a level
A
n^2
8
Q
l = 0
A
s orbital
spherical
9
Q
l = 1
A
p orbital
two lobes perpendicular to one another
10
Q
l = 2
A
d orbital
cloverleaf: four lobes
dz^2 has two lobes and donut ring
11
Q
l = 3
A
f orbitals
more lobes and nodes
12
Q
number of total nodes
A
n-1
13
Q
number of angular/planar nodes
A
l
