Forming ionic compounds (crisscross method) flashcard

Front

What is an ionic compound?

Back

An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding.

Front

What is the crisscross method in forming ionic compounds?

Back

The crisscross method involves taking the absolute value of the charge of each ion and using it as the subscript for the other ion to balance the charges.

Front

What is a cation?

Back

A cation is a positively charged ion that is formed when an atom loses one or more electrons.

Front

What is an anion?

Back

An anion is a negatively charged ion that is formed when an atom gains one or more electrons.

Front

How do you determine the formula of an ionic compound?

Back

To determine the formula, identify the charges of the cation and anion, then use the crisscross method to balance the charges.

Front

What is the charge of a sodium ion (Na)?

Back

The charge of a sodium ion (Na) is +1.

Front

What is the charge of a chloride ion (Cl)?

Back

The charge of a chloride ion (Cl) is -1.

Front

What is the formula for the ionic compound formed from magnesium (Mg) and oxygen (O)?

Back

The formula is MgO.

Front

What is the formula for the ionic compound formed from aluminum (Al) and sulfur (S)?

Back

The formula is Al2S3.

Front

What is the charge of a barium ion (Ba)?

Back

The charge of a barium ion (Ba) is +2.