Review
1. Write long notation for Cr
2. Write orbital notation for oxygen
3. Write noble gas notation for Br
4. How many s p d and f orbitals are there?
5. How many electrons can fit in s, p, d and f orbitals?
6. What is the symbol for principal and angular quantum number?
7. Define Afbau, Pauli and Hund’s rules.
8. Questions will be taken directly from the kahoot review.
9. There will be five Questions from the 5 previous units.
10.
One question on Mole conversion, one step or two steps.(mole map will be provided)
11.
S.F.
12.
One problem on c, wavelength, frequency and energy(formulas will be given to you)
13.
Atomic models, Dalton is solid sphere, Thomson is plum pudding, Rutherford is Nuclear, Bohr
is planetary, modern model is cloud model.
14.
How to calculate e, p and neutrons.
15.
I can ask questions on S.F., S.N., Intensive or extensive, and Periodic table
What is the maximum number of electrons that can be present in each principal energy level of hydrogen?
a.
n
b.
n2
c.
2n
d.
2n2
5. What is an electron dot structure?
a.
An element symbol surrounded by dots representing its valence electrons.
b.
An element symbol surrounded by its innermost electrons.
c.
An element symbol with a positive charge.
d.
A filled noble gas in brackets plus the remaining electron configuration expressed by filled orbitals.
6. Why does the 4s orbital begin to fill before the 3d orbital?
a.
The 4s orbital is lower than the 3d orbital in the aufbau diagram.
b.
s orbitals always fill before d orbitals.
c.
The 4s orbital is to the left of the 3d orbital in the diagram.
d.
The 4s orbital has higher energy than the 3d orbital.
7. Which of the following statements expresses Hund's rule?
a.
b.
Electrons in orbitals must possess opposite spins.
Single electrons with the same spin must occupy each equal-energy orbital before additional electrons with opposite spins can occupy the same
orbitals.
c.
Electrons with the same spin fill all orbitals.
d.
P orbitals may contain up to six electrons.
8. According to Bohr’s atomic model, which letter(s) in the figure represents a place where an electron cannot be?
a. A
b. B, C and E
c. A and D
d. D
9. What can you conclude from the figure on the right?
a. Hund’s rule has been violated.
b. The Pauli exclusion principle has been violated.
c. The Aufbau principle has been violated.
d. This is a valid orbital diagram.
10. What can you conclude from the figure on the right?
a. Hund’s rule has been violated.
b. The Pauli exclusion principle has been violated.
c. The Aufbau principle has been violated.
d. This is a valid orbital diagram.
16.