Ionic Naming

Front

What is the naming convention for ionic compounds formed from metals and nonmetals?

Back

Ionic compounds are named by stating the name of the metal (cation) first, followed by the name of the nonmetal (anion) with its ending changed to '-ide'. For example, NaCl is named sodium chloride.

Front

What is the significance of Roman numerals in naming ionic compounds?

Back

Roman numerals indicate the oxidation state of the metal cation in ionic compounds, especially for transition metals that can have multiple oxidation states. For example, Cu(II) indicates copper with a +2 charge.

Front

How do you determine the formula of an ionic compound?

Back

To determine the formula of an ionic compound, balance the total positive charge from the cations with the total negative charge from the anions. The subscripts in the formula represent the ratio of ions needed to achieve electrical neutrality.

Front

What is the formula for the ionic compound formed between aluminum and chlorine?

Back

The formula is AlCl3, as one aluminum ion (Al^3+) combines with three chloride ions (Cl^-) to balance the charges.

Front

What is the name of the ionic compound formed from magnesium and sulfur?

Back

The name of the compound is magnesium sulfide.

Front

How do you name an ionic compound containing a polyatomic ion?

Back

When naming an ionic compound with a polyatomic ion, use the name of the cation followed by the name of the polyatomic ion. For example, NaNO3 is named sodium nitrate.

Front

What is the charge of the phosphate ion?

Back

The phosphate ion (PO4^3-) has a charge of -3.

Front

Which elements typically require Roman numerals in their names?

Back

Transition metals and some post-transition metals, such as copper (Cu), iron (Fe), and lead (Pb), typically require Roman numerals to indicate their oxidation states.

Front

What is the formula for the ionic compound formed between calcium and oxygen?

Back

The formula is CaO, as calcium (Ca^2+) combines with oxygen (O^2-) in a 1:1 ratio.

Front

What is the name of the ionic compound formed from potassium and bromine?

Back

The name of the compound is potassium bromide.