Valence Electrons in H3O+

Dr. B explains how to draw the Lewis structure for the hydronium ion (H3O+). The video covers calculating the total number of valence electrons, arranging the atoms with oxygen at the center, and distributing the electrons to form bonds. The structure is completed by adding brackets and a positive charge to indicate the ion's nature. The tutorial provides a step-by-step guide to understanding the Lewis structure of H3O+.

How many valence electrons are present in the hydronium ion (H3O+)?

• 9

• 10

• 8

• 7

Which atom is placed at the center of the H3O+ Lewis structure?

• Carbon

• Oxygen

• Hydrogen

• Nitrogen

How many valence electrons are used to form chemical bonds in H3O+?

• 8

• 6

• 4

• 2

What is the total number of valence electrons needed for a full outer shell for hydrogen in H3O+?

• 4

• 2

• 6

• 8

What symbol is used to indicate that H3O+ is a positive ion?

• A multiplication sign

• A plus sign

• A zero

• A negative sign