Chemical Bonding and Valence Electrons

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 happens to electrons when a cation is formed?

Back

Cations lose electrons.

Front

What charge do cations carry?

Back

Cations carry a positive charge.

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 happens to electrons when an anion is formed?

Back

Anions gain electrons.

Front

What charge do anions carry?

Back

Anions carry a negative charge.

Front

What is the chemical formula for diphosphorus dichloride?

Back

P2Cl2

Front

What is the chemical formula for iron (III) sulfide?

Back

Fe2S3

Front

When do we use Roman numerals in chemical naming?

Back

Roman numerals are used in naming compounds that contain transition metals to indicate the oxidation state of the metal.

Front

Which of the following combinations requires Roman numerals in the name: potassium + fluorine, beryllium + oxygen, boron + iodine, silver + oxygen?

Back

Silver + oxygen requires Roman numerals.