Naming and Writing Formulas for Ionic Compounds

These flashcards cover key concepts related to naming and writing formulas for ionic compounds as outlined in the lecture notes.

Ionic Compound

A compound composed of positive and negative ions.

Binary Ionic Compound

An ionic compound that consists of two different elements.

Subscripts

Small numbers in chemical formulas indicating the number of ions present.

Polyatomic Ion

An ion composed of two or more atoms.

Formula for Magnesium Fluoride

MgF₂, determined by writing the metal symbol first, followed by the non-metal symbol and appropriate charges.

Charge of Fe in Fe₂O₃

Iron has a charge of +3 in this compound (Fe(III) oxide).

Naming Scheme for Positive Ions

Name the positive ion (metal) first, then the negative ion.

Monatomic Ion

An ion consisting of a single atom with a positive or negative charge.

Example of Polyatomic Ion

Sulfate (SO₄²⁻), a commonly encountered polyatomic ion.

Naming Rule for Negative Ions

For monatomic negative ions, use the root of the element name with the suffix -ide.

Copper(II) Sulfide Formula

CuS, formed by combining copper with sulfide.

Lead(II) Sulfate Formula

PbSO₄, highlighting its importance in automobile batteries.

Manganic Carbonate

A compound composed of manganese ions and carbonate ions.

Ca(NO₃)₂ Structure

An example of a compound containing both calcium and polyatomic nitrate ions.

Potassium Nitride Formula

K₃N, determined by the charges of potassium and nitride.

Calcium Iodide Formula

CaI₂, formed by the combination of calcium and iodide.