The Invalid Set of Quantum Numbers Chemistry MCQs

Mark Breakdown:K: 45
T: 14
C: 8
A: 25
Total: 95 marks
SCH4U – Chemistry
Name: _________________________
Date: _________________________
Part A: Multiple Choice (1 Mark x 45 Questions = 45 Marks)
Choose the best answer for each of the following questions. Mark all answers on a
separate document to be sent to your teacher.
1. Between the elements Al, P, Br, and At, the element with the highest ionization energy
would be:
a. Al
b. P
c. Br
d. At
2. The predominant intermolecular force between CH4 molecules is:
a. London dispersion forces
b. Hydrogen bonding
c. Covalent networking
d. Ionic networking
3. The invalid set of quantum numbers is:
a. n = 3, l = 1, ml = 0
b. n = 2, l = 2, ml = 1
c. n = 5, l = 4, ml = -4
d. n = 3, l = 0, ml = 0
4. Between the elements H, Br, I, and Fr, the element with the highest effective nuclear
charge is:
a. H
b. Br
c. I
d. Fr
5. Based on the Aufbau principle, before the 4s orbital can be filled, this orbital must be
filled first:
a. 5d
b. 3d
c. 4f
d. None of the above
6. The predominant intramolecular bonds in NH3 can be classified as:
a. Dispersion forces
b. Polar covalent
c. Non-polar
d. Ionic
7. The bond angle for the compound CH4 would be:
a.