Nickel Compounds and Ionic Structures

The video tutorial explains how to write the Lewis structure for nickel(II) nitrate, Ni(NO3)2. It begins by introducing the concept of ionic compounds, where metals transfer electrons to nonmetals. The video details the charges of nickel and nitrate ions, and how electrons are transferred between them. It then guides viewers through drawing the Lewis structure, emphasizing the arrangement of electrons. The tutorial concludes by explaining that Ni(NO3)2 exists as a crystal made of repeating formula units, providing insight into its electron arrangement.

What type of ion is nitrate considered as?

• Polyatomic ion

• Cation

• Anion

• Monatomic ion

What type of compound is formed between metals and nonmetals?

• Metallic compound

• Molecular compound

• Ionic compound

• Covalent compound

What is the charge on the nickel ion in Nickel(II) Nitrate?

• 1+

• 2+

• 2-

• 1-

How many electrons does nickel lose in Nickel(II) Nitrate?

• Two

• Three

• Four

• One

What is the charge on the nitrate ion?

• 1+

• 1-

• 2-

• 2+

What is the purpose of placing brackets around the nitrate ion in the Lewis structure?

• To denote it is a monatomic ion

• To indicate it is a cation

• To show it is a polyatomic ion

• To highlight its positive charge

What does the Lewis structure of Nickel(II) Nitrate help us understand?

• The color of the compound

• The arrangement of electrons

• The melting point

• The solubility in water

How does Nickel(II) Nitrate exist in nature?

• As a gas

• As a liquid

• As a crystal

• As a powder

What is the significance of the crystalline structure of Nickel(II) Nitrate?

• It determines the color of the compound

• It helps in understanding the electron arrangement

• It affects the taste of the compound

• It influences the boiling point