Lithium Hydroxide and Ion Charges

The video explains how to write the Lewis structure for lithium hydroxide (LiOH). It begins by introducing lithium as a metal and hydroxide as a polyatomic ion. The video then details the Lewis structure of the hydroxide ion, highlighting the covalent bond between oxygen and hydrogen. It further explains the ionic bond formation between lithium and hydroxide, where lithium loses an electron to become positive, and hydroxide gains an electron to become negative. The video concludes with a summary of the LiOH structure.

What is the main focus of the video tutorial?

• Writing the Lewis structure for lithium hydroxide

• Describing the properties of metals

• Explaining the periodic table

• Discussing chemical reactions

Which group does lithium belong to on the periodic table?

• Group 3

• Group 4

• Group 1

• Group 2

What type of ion is the hydroxide ion?

• Monatomic ion

• Polyatomic ion

• Anion

• Cation

How many valence electrons does lithium have?

• Four

• Three

• Two

• One

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

• Hydrogen bond

• Ionic bond

• Covalent bond

• Metallic bond

Why is the hydroxide ion negatively charged?

• It loses an electron to lithium

• It has more protons than electrons

• It shares electrons with lithium

• It gains an electron from lithium

What happens to lithium when it loses an electron?

• It forms a covalent bond

• It remains neutral

• It becomes a negative ion

• It becomes a positive ion

What do the brackets in the Lewis structure of lithium hydroxide indicate?

• Shared electrons

• Unshared electrons

• Covalent bonds

• Metallic bonds

What is the overall charge of the lithium hydroxide compound?

• Neutral

• Positive

• Negative

• Double negative