Lewis Structure and Valence Electrons

Dr. B explains how to draw the Lewis structure for Hydrogen Peroxide (H2O2). The video covers calculating valence electrons, arranging atoms, forming chemical bonds, and ensuring the octet rule is satisfied. The tutorial concludes with a comparison to the structural formula.

How many valence electrons does each hydrogen atom contribute in the Lewis structure of H2O2?

• 4

• 2

• 3

• 1

What is the total number of valence electrons used in the Lewis structure of H2O2?

• 16

• 14

• 12

• 10

In the Lewis structure of H2O2, where are the hydrogen atoms placed?

• In the center

• On the outside

• Between the oxygen atoms

• Next to each other

How many valence electrons are used to form chemical bonds in the initial drawing of H2O2?

• 6

• 4

• 8

• 2

What is the significance of the octet rule in the Lewis structure of H2O2?

• It ensures all atoms have the same number of electrons.

• It ensures the molecule is stable.

• It ensures oxygen has 8 valence electrons.

• It ensures hydrogen has a full outer shell.

What is the structural formula of H2O2 used for?

• To predict chemical reactions

• To show the arrangement of atoms

• To determine the number of valence electrons

• To calculate molecular weight