Question

1. form a bond: drag electrons back and forth until the molecule of oxygen (o₂) is stable. click check to confirm your molecule is stable. take a snapshot and paste the image into your document (dont forget to label it \o₂\).

turn on highlight shared electrons. how many pairs of shared electrons are there in a stable molecule of oxygen?

1. draw a diagram: draw a lewis diagram of the oxygen molecule in the space below at left. to check your work, turn on show lewis diagram. draw the correct diagram on the right. (in these diagrams, just fill in the dashes. dont worry about the electron dots.)

hand draw in this space or click here to select edit to use the drawing tool.
practice diagram: o o
actual: o o

1. practice: create covalent bonds and stable molecules for the remaining substances.

Explanation:

Step1: Recall oxygen's valence - electron number

Oxygen has 6 valence electrons. In a stable molecule, each oxygen atom wants to achieve an octet (8 - valence - electron) configuration.

Step2: Determine the number of shared - electron pairs

Two oxygen atoms share electrons to form a double - bond. Each bond consists of a pair of shared electrons. A double - bond means 2 pairs of shared electrons.

Answer:

2