3.2 Ionic Bonds

Front

What happens to an atom when it gains electrons?

Back

It becomes negatively charged.

Front

What happens to an atom when it loses electrons?

Back

It becomes positively charged.

Front

What is the formula for the compound formed by Al³⁺ and O^2- ions?

Back

Al₂O₃.

Front

What is the correct name for MgI₂?

Back

Magnesium iodide.

Front

What is the formula for the compound formed by Ca⁺² and Br^- ions?

Back

CaBr₂.

Front

Define ionic bond.

Back

An ionic bond is a chemical bond formed between two ions with opposite charges.

Front

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

Back

The charge is +1.

Front

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

Back

The charge is -1.

Front

How do you determine the formula of an ionic compound?

Back

By balancing the total positive and negative charges of the ions.

Front

What is the significance of the octet rule in ionic bonding?

Back

Atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.