Valence Electrons in OBR2 Molecule

The video tutorial explains how to draw the Lewis structure for oxygen dibromide (OBr2). It begins by counting the valence electrons of oxygen and bromine, then places oxygen in the center with bromine on either side. The tutorial demonstrates forming chemical bonds and completing the octets for each atom, resulting in a stable Lewis structure for OBr2. The video concludes with a review of the completed structure, ensuring all atoms have full octets.

How many valence electrons does oxygen have in the OBR2 molecule?

• 7

• 6

• 8

• 4

What is the total number of valence electrons in the OBR2 molecule?

• 20

• 18

• 16

• 14

Where is the oxygen atom placed in the OBR2 Lewis structure?

• Above the bromines

• In the center

• On the right

• On the left

How many valence electrons are used to form chemical bonds in the initial step?

• 6

• 4

• 8

• 2

How many valence electrons are left after completing the octets of the outside atoms?

• 8

• 6

• 2

• 4

What is the final electron configuration for each bromine atom in the OBR2 structure?

• 9 electrons

• 8 electrons

• 7 electrons

• 6 electrons