Naming Ionic Compounds: A Comprehensive Guide

This lesson covers the naming of ionic compounds, starting with the definition of pure substances and binary compounds. It explains the IUPAC rules for naming binary ionic compounds, including the use of 'ide' for anions. The lesson also covers the Stock system for naming transition metals, emphasizing the use of Roman numerals to indicate charge. Finally, it discusses naming compounds with polyatomic ions, highlighting that their names remain unchanged.

Why is it important for scientists worldwide to use the same periodic table?

• To create new elements.

• To reduce the number of elements.

• To make it easier to learn different languages.

• To ensure consistent communication and understanding of elements.

What defines a pure substance?

• A substance with no impurities and a definitive chemical formula.

• A substance that can be either solid or liquid.

• A mixture of different elements.

• A substance that changes its composition frequently.

What is a binary compound?

• A compound that is always a gas.

• A compound made of three elements.

• A compound that changes its composition.

• A compound made of two elements.

How do we name the anion in a binary ionic compound?

• By adding 'ium' to the end of the element's name.

• By adding 'ide' to the end of the element's name.

• By adding 'ate' to the end of the element's name.

• By keeping the element's name unchanged.

What is the correct name for the compound CaCl2?

• Calcium Chloride

• Calcium Chlorite

• Calcium Chlorate

• Calcium Chlorine

What is the charge of a Group 1 element in a binary ionic compound?

• -2

• -1

• +2

• +1

Why do we use Roman numerals in the Stock system for transition metals?

• To denote the number of bonds.

• To represent the atomic mass.

• To show the charge of the metal ion.

• To indicate the number of atoms.

What is the formula for Cobalt(II) oxide?

• Co2O3

• CoO

• Co2O

• CoO2

How do we name a compound with polyatomic ions?

• By changing the name of the polyatomic ion.

• By keeping the name of the polyatomic ion unchanged.

• By adding 'ide' to the polyatomic ion.

• By adding 'ate' to the polyatomic ion.

What is the correct name for the compound NH4Cl?

• Ammonium Chlorine

• Ammonium Chlorite

• Ammonium Chloride

• Ammonium Chlorate