Valence Electrons and Lewis Structures

The video tutorial explains how to count valence electrons for CO2 using the periodic table. It details the valence electrons for carbon and oxygen, calculates the total valence electrons in CO2, and provides instructions for drawing the Lewis structure. The video concludes with additional resources for further help.

Which group in the periodic table contains elements with one valence electron?

• Group 16

• Group 14

• Group 2

• Group 1

How many valence electrons does carbon have?

• 6

• 8

• 4

• 2

What is the total number of valence electrons in a CO2 molecule?

• 16

• 14

• 12

• 18

How many valence electrons does each oxygen atom contribute in CO2?

• 8

• 6

• 4

• 2

What is the purpose of drawing a Lewis structure for a molecule?

• To determine the molecular weight

• To visualize the arrangement of atoms and electrons

• To predict the color of the compound

• To calculate the boiling point