1A Exam 4 Spring 2012
1. Give the full electronic configuration of the Cobalt (II) ion.
2. Give the noble orbital diagram of molybdenum. Explain if the element is para-or
diamagnetic.
3. Put the following in order of Decreasing Atomic Size. Explain clearly the order – the
proper scientific explanation on what is affecting the size!
a. Ar, S2—, Si, Cu, Cl—, K+
4. Explain how many electrons are described by the following quantum numbers – your
quantum numbers must be explained; any answers without an explanation will not be
graded.
a. n = 3 l = 2
b. n= 3 l = 2 ml = -1, 1
c. n=2 l = 0, 1
5. Fill in the Molecular Orbital Diagram below for NO. Calculate the bond order and briefly
explain the strength of the bond from the bond order. (Calculation must be shown).
6. Draw the best Lewis Structure for ClO3— and shown the calculation for formal charge of
every atom.
7. Draw the Lewis Structure of the Carbonate Polyatomic Anion.
a. Lewis Structure:
b. What is the molecular geometry?
c. What is the polarity of the carbon oxygen BOND? EXPLAIN
d. What is the polarity of the MOLECULE? EXPLAIN
8. Draw the Lewis Structure of the Nitrite Polyatomic Anion.
a. What is the bond order? EXPLAIN
b. What is the electronic geometry?
c. What is the molecular geometry?
1A Exam 4 Spring 2012
1. Give the full electronic configuration of the Manganese (II) ion.
2. Give the noble orbital diagram of chromium. Explain if the element is para-or
diamagnetic.
3. Draw the Lewis Structure of the Carbonate Polyatomic Anion.
a. Lewis Structure:
b. What is the molecular geometry?
c. What is the polarity of the carbon oxygen BOND? EXPLAIN
d. What is the polarity of the MOLECULE? EXPLAIN
4. Draw the Lewis Structure of the Nitrite Polyatomic Anion.
a. What is the bond order? EXPLAIN
b. What is the electronic geometry?
c. What is the molecular geometry?
5. Put the following in order of Increasing Atomic Size. Explain clearly the order – the
proper scientific explanation on what is affecting the size!
a. Ar, S2—, Si, Cu, Cl—, K+
6. Explain how many electrons are described by the following quantum numbers – your
quantum numbers must be explained; any answers without an explanation will not be
graded.
a. n = 3 l = 2
b. n= 3 l = 2 ml = -1, 1
c. n=2 l = 0, 1
7. Fill in the Molecular Orbital Diagram below for NO. Calculate the bond order and briefly
explain the strength of the bond from the bond order. (Calculation must be shown).
8. Draw the best Lewis Structure for ClO3— and shown the calculation for formal charge of
every atom.