Ionic Charges and Polyatomic Ions

This video provides a quick overview of the key elements and ions to memorize for the upcoming nomenclature quiz. It emphasizes the importance of distinguishing between similar elements like manganese and magnesium, and focuses on memorizing 'ides' ions and their charges. The video also explains how the periodic table helps predict ion charges based on their position relative to noble gases. The teacher offers tips for memorization and clarifies the concept of anions, polyatomic ions, and monoatomic ions.

Which of the following elements should you be able to distinguish for the quiz?

• Iron and Copper

• Manganese and Magnesium

• Carbon and Silicon

• Sodium and Potassium

What is a characteristic of 'ide' ions?

• They are found in column two of the periodic table.

• They are always polyatomic.

• They are always noble gases.

• They are always cations.

Which of the following is an example of a polyatomic ion?

• Oxide

• Acetate

• Chloride

• Fluoride

What charge do ions in the column next to noble gases typically have?

• Plus two

• Plus one

• Minus two

• Minus one

What is the charge of a sulfide ion?

• Minus three

• Plus one

• Minus two

• Minus one

Which ion is formed by iodine?

• Iodite

• Iodate

• Iodide

• Iodine

What is the charge of nitride ions?

• Minus two

• Plus three

• Minus one

• Minus three

What is the charge of ions that are three columns away from noble gases?

• Minus one

• Minus two

• Minus three

• Plus three

Which of the following ions is not monoatomic?

• Fluoride

• Bromide

• Hydroxide

• Chloride

Which of the following is a polyatomic ion with a minus one charge?

• Phosphide

• Sulfide

• Oxide

• Hydroxide