Practice Exam Fall 2014

Question 1

The interaction of a single electron with a nucleus of a +2 charge is __________than the interaction of a single electron with a nucleus of a +3 charge.

a. less attractive
b. more attractive
c. less repulsive
d. more repulsive

Answer 1

a. less attractive

Question 2

What is the correct electronic configuration for Ni⁺²?

Answer 2

[Ar] 3d8

Question 3

Alumninum Oxide is a gas, solid, or liquid at room temperature?

Answer 3

Solid.

Question 4

Consider the 3 p orbitals px, py, pz. Sulfur has the electron configuration [Ne]3s²3p⁴. The four p electrons are best described in which p orbitals.

Answer 4

2 in px, 1 in py, 1 in pz.

Question 5

A simple model of liquid H₂O shows what?

Answer 5

The disorder and density of the liquid phase.

Question 6

When counting the magnitude of 76,000,000,000 how many orders of magnitude is it larger than 100?

Answer 6

8

Question 7

What is the correct ground state electronic configuration for the Ni²⁺ cation?

Answer 7

[Ar] 3d⁸

Question 8

What is incorrect about this formula NO_3.

Answer 8

The formula is missing the - charge on the ion.