Ionic Bonding

Front

What is ionic bonding?

Back

Ionic bonding is the electrostatic attraction between positively charged ions (cations) and negatively charged ions (anions) that occurs when electrons are transferred from one atom to another.

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

What is the charge of a magnesium ion (Mg)?

Back

The charge of a magnesium ion (Mg) is +2.

Front

What is the charge of a bromide ion (Br)?

Back

The charge of a bromide ion (Br) is -1.

Front

In the formula MgBr₂, what does the subscript '2' indicate?

Back

The subscript '2' indicates that there are 2 bromide ions for every magnesium ion.

Front

How do you determine the formula of an ionic compound?

Back

To determine the formula of an ionic compound, combine the cation and anion in a ratio that results in a neutral charge.

Front

What is the general rule for writing the formula of an ionic compound?

Back

The general rule is to write the positive ion (cation) first, followed by the negative ion (anion).

Front

What happens to the valence electrons of sodium (Na) when it forms an ionic bond?

Back

Sodium (Na) loses 1 valence electron to form a +1 cation.

Front

What is the charge of the ion formed by calcium (Ca)?

Back

Calcium (Ca) forms a +2 ion.