Chapter 3: Chemical Bonding Unit Review Term 1

What is the correct formula for the molecule shown in the picture?

• N₃H

• NH

• NH₃

• NH₄

Write the electron configuration for an oxygen atom.

Write like this: 1s2[space]2s2[space]....

In the correct Lewis structure for CH_4, 

how many unshared electron pairs surround the carbon?

In CO₂, how many unshared pairs of electrons does each oxygen have?

• 1

• 2

• 4

• 6

When writing Lewis structures, only ____ electrons are involved.

• inner shell

• valence

• stable

How many total valence electrons are participating in bonding in the image shown?

Three pairs of electrons are shared in a ___ .

• single bond

• double bond

• triple bond

• quadruple bond

How many electrons does each line indicate are shared?

• 1

• 2

• 3

• 4

How many electrons should Lithium have around its Lewis dot model?

• 1

• 2

• 3

• 4

How many electrons should Beryllium have around its Lewis dot model?

• 1

• 2

• 3

• 4