Quiz- Naming Ions

The name for Cd⁺² is _______.

Answer explanation

Cadmium only has one possible oxidation state so roman numerals are not needed.

You also need to make sure you add the word 'ion' afterwards to communicate that it has a charge. Otherwise it would just be a neutral atom of cadmium.

The name for Pd⁺⁴ is _______.

Answer explanation

Palladium has one multiple oxidation state so roman numerals are needed.

You also need to make sure you add the word 'ion' afterwards to communicate that it has a charge. Otherwise it would just be a neutral atom of cadmium.

The name for P^-3 is _______.

Answer explanation

Chemists use the '-ide' suffix to indicate an atom is negative (anion).

Phosphorus, oxygen, nitrogen are exceptions when naming their anions you drop the last two syllables.

The name for PO₄^-3 is _______.

Answer explanation

This ion has multiple atoms so it is a polyatomic ion. A polyatomic ion reference chart is used to determine its name.

Remember to add the word ion.

The formula for strontium bromide is ______.

Answer explanation

Strontium has a charge of +2 and Bromide has a charge of -1. Therefore you will need two bromides to balance the charge of the strontium.

The formula for gold(I) oxide is ______.

Answer explanation

The roman numeral tells us that they charge of gold atom is +1. Therefore you will need two gold atoms to balance out the -2 charge on the oxygen.

The formula for calcium phosphate is ______.

Answer explanation

The calcium has a +2 charge.

Phosphate ends in 'ate' which indicates it is a polyatomic ion. The formula for phosphate is PO₄^-3.

There would need to be three calcium ions and two phosphate ions to balance the charges.

Parentheses are needed when there are more than one polyatomic ions.

The formula for lead(IV) nitrate is ______.