Ionic Compounds and Their Properties

The video tutorial explains how to write the Lewis structure for lithium chloride (LiCl). It begins by identifying lithium as a metal and chlorine as a non-metal, forming an ionic compound. The tutorial details the valence electrons of lithium and chlorine, showing how lithium transfers an electron to chlorine, resulting in ion formation. The video further explains the ionic bond between the lithium cation and the chloride anion, forming a formula unit. The tutorial concludes with a visual representation of the crystal structure of LiCl.

What type of compound is lithium chloride?

• Ionic

• Metallic

• Covalent

• Molecular

How many valence electrons does lithium have?

• One

• Four

• Two

• Three

In which group is chlorine found on the periodic table?

• Group 1

• Group 18

• Group 2

• Group 17

What happens to lithium when it loses an electron?

• It becomes negatively charged

• It becomes positively charged

• It remains neutral

• It gains a proton

What is the charge on a chloride ion after gaining an electron?

• Positive

• Negative

• Neutral

• Double negative

What is the significance of a full outer shell in ions?

• It makes the ion unstable

• It gives the ion a positive charge

• It causes the ion to lose electrons

• It provides stability to the ion

What is the charge on a lithium ion after electron transfer?

• Neutral

• Negative

• Double positive

• Positive

What is formed when positive and negative ions attract each other?

• Covalent bond

• Hydrogen bond

• Ionic bond

• Metallic bond

What is a formula unit in the context of ionic compounds?

• A single molecule

• A covalent bond

• The smallest repeating unit in a crystal

• A pair of ions

What color represents the lithium ion in the crystal structure diagram?

• Green

• Purple

• Blue

• Red