Quantum Numbers Locating the electron in the atom

2 Quantum Numbers 2 , 1, 0 , +1/2

2

n= Principal Quantum Number 2 1 Quantum Numbers 2 , 1, 0 , +1/2

1

Shape of s Sublevel

Shape of p sublevel

Shape of d sublevels

Shape of f sublevels

Answer the following: • • • How many sublevels are there for n =3? How many for n =4? What is the relationship between n and the number of sublevels. Predict how many sublevels there are for n = 8.

n= Principal Quantum Number 2 1 ℓ= Subsidiary Quantum Numbers 2 , 1, 0 , +1/2 0

0

Answer the following • A person may live at 1000 First Street in the city of Portland, Oregon and another may live at 1000 First Street in the city of Portland, Maine. Is it legal to have two identical street addresses in two towns of the same name in the same country? Explain.

n= Principal Quantum Number 2 1 ℓ= Subsidiary Quantum Number m= Magnetic Orbital Quantum Numbers 2 , 1, 0 , +1/2 0 +1/2

+1/2

n= Principal Quantum Number m= Magnetic Orbital m= + ℓ to - ℓ n= 1 -7 2 1 ℓ= Subsidiary Quantum Number ℓ= n-1 Quantum Numbers 2 , 1, 0 , +1/2 0 +1/2 s= Magnetic Spin s=+1/2 or -1/2

Practice • • • 4, 1, 1, + ½ 2, 0, 0, - ½ 6, 1, -1, + ½ Bi Br Rb

Curveball • F & D block are weird…let’s take a second to look at one wrench they throw into our quantum numbers… • Subsidiary Q. N. Chart

1

Some Practice • • • 5, 2, -1, - ½ 4, 3, -2, + ½ 5, 2, 1, + ½ U Co Lu

More Practice • • 5, 3, 2, +½ 4, 2, 1, -½ 5, 2, -½ 6, 2, -2, +½ 4, 3, -½ Er Zn

Periodic Table

Answer the following • • Decide which of the following quantum number sets is permissible and give an explanation for your decision. A. n = 1, ℓ = 1, m = 0, s = -1/2 B. n = 2, ℓ= 1, m = 0, s = -1/2 C. n = 3, ℓ= 2, m = 3, s = +1/2