Type I and II Compounds Lesson

Type I binary ionic compounds review

Type I Ionic compounds

• Comprised of a metal ion and a nonmetal ion

• The metal anion is a cation (a positively charged ion)

• The nonmetal is an anion (a negatively charged ion)

• In Type I ionic compounds, the cations only come in one "flavor" of charge. Example: sodium is always +1

To name Type I binary ionic compounds:

• Put the cation (metal) first. Use the entire name of the metal. Example: sodium, potassium, calcium, etc.

• Put the name of the anion (nonmetal) section. Change the ending to "-ide." Example: oxide, bromide, chloride, nitride, etc.

• Ions always combine in a way that the charges balance each other. E.g., if you have one calcium (2+ charge), you need 2 chlorines (1- charge) to balance it out.

• Even if a type 1 ionic compound has two copies of an ion (e.g. CaCl₂), it will always be named using the same procedure(e.g., calcium chloride).

Multiple Choice

Which of the following is NOT an ionic compound:

• CaO
• NaOH
• BaCl₂
• Br₂

Multiple Choice

PbS₂

• lead sulfide
• lead sulfur
• lead II sulfide
• lead IV sulfide

Multiple Choice

What is the name of Cs2O?

• cesium dioxide

• cesium oxide

• cesium oxygen

• dicesium oxide

Multiple Choice

What is the name of AlF3?

• aluminum fluoride

• aluminum trifluoride

• aluminum trifluorine

• aluminum fluorine

Multiple Choice

What is the name of K₂S?

• dipotassium sulfur

• potassium sulfur

• potassium disulfur

• potassium sulfide

Multiple Choice

What is the name of MgSe?

• manganese selenide

• manganese monoselenide

• magnesium selenide

• magnesium selenium

Multiple Choice

What is the formula for barium nitride?

• BaN

• Ba2N

• BaN2

• Ba3N2

Multiple Choice

What type/s of atoms make up binary ionic compounds?

• metal + nonmetal

• 2 nonmetals

• 2 metals

Multiple Choice

What is an anion?

• positive ion

• negative ion

• neutral atom

Multiple Choice

What is a cation?

• positive ion

• negative ion

• neutral atom