Lewis Structure of PO2 3- Ion

The video tutorial explains how to write the Lewis structure for the hypophosphite ion (PO2 3-). It begins by counting the valence electrons, placing phosphorus at the center, and arranging two oxygen atoms around it. The tutorial demonstrates forming chemical bonds and ensuring each atom achieves a complete octet. Finally, it shows how to denote the ion's charge with brackets and a 3- sign.

How many valence electrons are there in total for the PO2 3- ion?

• 22

• 24

• 20

• 18

Which element is placed at the center of the Lewis structure for PO2 3-?

• Nitrogen

• Phosphorus

• Oxygen

• Hydrogen

How many valence electrons are used to form the initial bonds between phosphorus and oxygen?

• 4

• 6

• 8

• 2

What is the total number of valence electrons used after completing the octets for both oxygen atoms?

• 14

• 12

• 16

• 18

How many additional electrons are placed around phosphorus to complete its octet?

• 2

• 4

• 6

• 8

What is the final step in representing the PO2 3- ion in its Lewis structure?

• Changing the central atom

• Placing brackets and indicating charge

• Removing electrons

• Adding more electrons

What charge is indicated outside the brackets in the Lewis structure of PO2 3-?

• 1-

• 2-

• 3-

• 4-

Who is the presenter of the video on the Lewis structure for PO2 3-?

• Dr. D

• Dr. C

• Dr. B

• Dr. A