Atomic Structure CH1 Flashcards
As electrons go from a lower energy level to a higher energy level, they get?
(A)sorb Light
(H)igher Potential
(E)xcited
(D)istant from Nucleus
What does positive ad negative energy stand for?
+ E = emission
- E = absorption
It is impossible to simultaneously determine, with perfect accuracy, the momentum and the position of an electron.
Heisenburg Uncertainty Principle
For any given value of n, the range of possible values for l is?
0 to (n-1)
For any value of l, there will be _____ possible values for m(l).
(2l +1) OR (-l to l)
Each level of l corresponds to which orbital?
l = 0 (s) l = 1 (p) l = 2 (d) l = 3 (f)
Orbitals are filled in such a way that there are a max number of half filled orbitals with parallel spins.
Hund’s Rule
What are two electron configurations that do not follow Hund’s Rule?
Chromium and Copper (4s1)
States that no two electrons in an atom can possess the same set of the four quantum numbers (n,l, ml, ms). This is due to the fact that electrons have a negative charge and therefore repel each other. Thus, electrons must position themselves to minimize this repulsion energy.
Pauli Exclusion Principle