UCB - MCD4390 Chemistry I - Trimester 3 - 2024
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The radial distribution function (electron density plot) for the 3s atomic orbital is given by the plot.
Determine na (initial energy level) and nb (final energy level) for when a hydrogen atom absorbs 2.1147 x 10-18 J of energy from the ground state.
na =
nb =
For the following table:
n | l | ml | ms | |
a) | 1 | 2 | 1 | ½ |
b) | 4 | 3 | 2 | ½ |
c) | 3 | 0 | 1 | - ½ |
d) | 3 | 2 | 2 | ¼ |
e) | 3 | 0 | 0 | ½ |
f) | 0 | 2 | 1 | ½ |
Which of these quantum numbers are non-existent? Explain why those are non-existent. The quantum numbers that do exist, provide the atomic orbital it represents
e = exist or n = non-existent | explanation for n, if e - select e | atomic orbital if e, if n - write n | |
a) | |||
b) | |||
c) | |||
d) | |||
e) | |||
f) |
The following questions are based on the atomic orbital depicted in the figure below.
i) The name of this atomic orbital is
ii) The value for the angular momentum quantum number l is
iii) This atomic orbital has planar node(s)
iv) If this atomic orbital has 1 radial node, the value for the principal quantum number, n is
Which of the following molecules has a dipole moment?
Which of the following bond has a stronger bond?
A shorter bond length means a stronger bond.
Which of the following has a greater bond energy?
a larger difference of the electronegativity means a greater bond energy.
The following is an incorrect diagram of ground state of O.
Which principle is it violating?
A metal emits light at 1.8 nm. What is the energy in Joules?
Speed of light is 3.00 x 108 m s-1. Planks constant is 6.626 x 10-34 J s.
Give your answer to 3 significant figures. Do not enter units!For large or small numbers, use scientific notation, for example 1.23E-4
Which of the following partial orbital diagrams obey Hund's rule?
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