Atomic models
Which model is comprised of electrons floating in an area of positive?
Thomson's Plum Pudding model (blueberry muffin)
What are the letter names and shapes of the 4 orbitals?
s, p, d, f
Draw the orbital diagram for oxygen.
See board
Write the complete electron configuration for S
1s2 2s2 2p6 3s2 3p4
What is the wavelength of an electron with a frequency of 1.23 x 1015 1/s?
c=(wavelength)(frequency)
(3.00x108 m/s) = (wavelength)*(1.23 x 1015 1/s)
wavelength = 2.43 x 10-7 m
Which atomic model is comprised of a positive nucleus with the electrons floating in space around it?
Rutherford's Nuclear Model
What does "n" represent?
The principle quantum number - Energy and size
Which rule says that electrons should be placed in orbital diagrams from low energy to high energy?
Aufbau principle
Write the complete electron configuration for Ni
1s2 2s2 2p6 3s2 3p6 4s2 3d8
What is the frequency of an electron with a wavelength of 7.88 nm?
nm --> m
7.88 nm = 7.88 x 10-9 m
c=(wavelength)(frequency)
(3.00x108 m/s) = (frequency)*(7.88 x 10-9 m)
frequency = 3.81 x 1016 1/s
Which atomic model is comprised of a positive nucleus with the electrons floating in circular paths?
Bohr Model
What does "l" represent? (letter elll)
Angular momentum quantum number
shape
What rule says that electrons should fill subshells one orbital at a time, then go pair?
Hund's rule
Write the noble gas (abbreviated) electron configuration for Ge
[Ar] 4s2 3d10 4p2
What is the energy of an electron with a frequency of 9.75 x 1013 1/s?
E=h*(frequency)
E = (6.626 x 10-34 J*s) * (9.75 x 1013 1/s)
E = 6.46 x 10-20 J
Which atomic model is comprised of a positive nucleus with the electrons floating in orbitals around it, in different shapes?
Quantum Model (Shrodinger)
What does m-sub-l represent?
Magnetic quantum number- number of orbitals
Which rule says that each electron in an orbital should have opposite spin (up arrow and down arrow)?
Pauli Exclusion Principle
Write the noble gas (abbreviated) electron configuration for Sr
[Kr] 5s2
What is the frequency of an electron with an energy of 4.26 x 1022 J?
E=h*(frequency)
4.26 x 1022 J = (6.626 x 10-34 J*s) * (frequency)
frequency = 6.43 x 1011 1/s
How many electrons can go into each orbital of s, p, d, f?
s-2
p-6
d-10
f-14
Draw the electron orbital diagram of Se.
See the board
What is the (neutral) element with an electron configuration of
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d9
Ag
What is the wavelength of an electron if its energy is 5.5 x 10-17 J?
E=h*(frequency)
5.5 x 10-17 J = (6.626 x 10-34 J*s) * (frequency)
frequency = 8.3 x 1016 1/s
Then:
c=(wavelength)(frequency)
(3.00x108 m/s) = (wavelength)*(8.3 x 1016 1/s)
wavelength = 3.6 x 10-9 m