Understanding OH- Lewis Structure

The video tutorial explains the OH- Lewis structure, starting with the calculation of valence electrons: 6 from Oxygen, 1 from Hydrogen, and an additional electron due to the negative charge, totaling 8. The tutorial demonstrates placing Oxygen and Hydrogen, forming a bond, and ensuring Oxygen's octet is complete. It concludes by adding brackets and a negative sign to indicate the ion nature of OH-.

How many total valence electrons are present in the OH- Lewis structure?

• 9

• 6

• 7

• 8

What is the purpose of placing two electrons between the hydrogen and oxygen atoms in the OH- Lewis structure?

• To increase the number of valence electrons

• To balance the charge

• To complete the octet of hydrogen

• To form a chemical bond

How many valence electrons does hydrogen have in the OH- Lewis structure?

• 3

• 1

• 2

• 4

Why do we need to put brackets around the OH- Lewis structure?

• To indicate it is a molecule

• To show it is an ion

• To highlight the chemical bond

• To separate it from other structures

What does the negative sign in the OH- Lewis structure represent?

• A neutral charge

• A positive charge

• A missing electron

• An additional electron