Quantum model of an Atom Chapter 17. 0 of 250. 10. I read Chapter 15 before coming to class. Yes, the whole thing. Nope, essentially none. Well some, more than ½. A little only. 250. 0. The wave nature of moving particles is interpreted as being.
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of
250
10
I read Chapter 15 before coming to class0
The wave nature of moving particles is interpreted as being0
10
Standing waves are created whenTwo waves on a drum head
A single wave on a drum head
Three waves on a drum head
A CRUDE representation!
The shape and energies of the actual orbitals depend on the number of standing waves in the pattern. They are found from solving the Shrödinger Wave equation:
h2 d2Y(x)
8 p2m dx2
+ V(x) Y(x) = EY(x)
Three Dimensional Atomic OrbitalsKinetic Energy + Potential Energy = Total Energy
s
s
p
One orbital
s
p
d

e

The Pauli Exclusion PrincipleSpin Down Spin Up
Low energy
1
2
3
Understanding Atomsfree electron
Zero Energy
3d
3p
3s
Level 3
2p
Level 2
2s
Energy
It is negative for a bound electron
Level 1
1s
0
What is the maximum number of electrons in the entire set of p orbitals of any given shell?0
10
How many electrons total are in an atom that has the first and second shells completely filled?free electron
3d
3p
3s
Level 3
2p
Level 2
2s
Level 1
1s
free electron
3d
3p
3s
Level 3
2p
Level 2
2s
Level 1
1s