Hydroxide Ion and Valence Electrons

The video tutorial explains how to write the Lewis structure for the hydroxide ion. It begins by counting the valence electrons of oxygen and hydrogen, considering the negative charge for an extra electron. The tutorial then demonstrates constructing the Lewis structure by forming a chemical bond between oxygen and hydrogen and completing the octet for oxygen. The video concludes by discussing the molecular geometry, bond angle, and hybridization of the hydroxide ion.

Which group does oxygen belong to in the periodic table?

• Group 16

• Group 12

• Group 14

• Group 18

How many valence electrons does hydrogen have?

• Two

• Three

• One

• Four

What does the negative charge in the hydroxide ion indicate?

• A missing electron

• An extra proton

• A missing proton

• An extra electron

How many total valence electrons are present in the hydroxide ion?

• Nine

• Six

• Seven

• Eight

What type of bond is formed between oxygen and hydrogen in the hydroxide ion?

• Ionic bond

• Covalent bond

• Hydrogen bond

• Metallic bond

How many valence electrons does oxygen have in its octet in the hydroxide ion?

• Nine

• Eight

• Seven

• Six

Why is it acceptable for hydrogen to have only two valence electrons in the Lewis structure?

• Hydrogen has a full outer shell with two electrons

• Hydrogen is an exception to the octet rule

• Hydrogen can only form one bond

• Hydrogen is a noble gas

What is the molecular geometry of the hydroxide ion?

• Bent

• Linear

• Trigonal planar

• Tetrahedral

What is the bond angle in the hydroxide ion?

• 180 degrees

• 109.5 degrees

• 120 degrees

• 90 degrees

What is the hybridization of the oxygen atom in the hydroxide ion?

• sp3d

• sp3

• sp2

• sp