Barium Nitrate Ionic Compounds

The video tutorial explains how to write the Lewis structure for barium nitrate (Ba(NO3)2). It begins by introducing barium nitrate as an ionic compound composed of a metal (barium) and non-metals (nitrogen and oxygen) forming a polyatomic ion called nitrate. The tutorial details the electron transfer process in ionic compounds, where barium loses electrons to become positively charged, and nitrate ions gain electrons to become negatively charged. The video then demonstrates constructing the Lewis structure for barium nitrate, highlighting the use of brackets around ions. Finally, it discusses the concept of formula units and the crystal structure of barium nitrate.

What type of ion is formed by nitrogen and oxygen in barium nitrate?

• Phosphate ion

• Carbonate ion

• Nitrate ion

• Sulfate ion

What happens to barium when it forms an ionic compound with nitrate?

• It shares electrons equally with nitrate

• It loses electrons and becomes positively charged

• It remains neutral

• It gains electrons and becomes negatively charged

How many valence electrons does barium have before forming an ionic bond?

• Three

• Two

• One

• Four

In the Lewis structure of barium nitrate, what is used to indicate the nitrate ions?

• Curly braces

• Brackets

• Quotation marks

• Parentheses

What is the charge on the barium ion in barium nitrate?

• 2-

• 1-

• 2+

• 1+

What is the overall charge of the nitrate ion in barium nitrate?

• 1+

• Neutral

• 1-

• 2-

What is the primary type of bond formed in barium nitrate?

• Hydrogen bond

• Covalent bond

• Ionic bond

• Metallic bond

What is a formula unit in the context of barium nitrate?

• A single nitrate ion

• A single atom of barium

• A repeating unit in the crystal structure

• A single molecule of barium nitrate