Preparation for Types of Compounds Flashcard (Unit 3 Quiz #1)

Front

What is a Cation?

Back

A positive ion that has lost one or more electrons.

Front

What type of compound is formed when hydrogen combines with a nonmetal?

Back

Acid.

Front

What type of element typically starts a chemical formula for ionic compounds?

Back

Metal.

Front

What is an Anion?

Back

A negative ion that has gained one or more electrons.

Front

What is a Covalent Compound?

Back

A compound made of two or more nonmetals (anions only) where the sum of the oxidation numbers is not calculated.

Front

What is the difference between Ionic and Covalent Compounds?

Back

Ionic compounds are formed between metals and nonmetals, while covalent compounds are formed between nonmetals.

Front

What is a Polyatomic Ion?

Back

An ion composed of two or more atoms that are covalently bonded and that act as a single unit with a net charge.

Front

What is the significance of oxidation numbers in compounds?

Back

Oxidation numbers indicate the degree of oxidation of an atom in a compound, helping to determine the type of bond and compound.

Front

What is the general formula for acids?

Back

Acids typically start with 'H' (hydrogen) followed by a nonmetal or polyatomic ion.

Front

What is the role of metals in ionic compounds?

Back

Metals lose electrons to form cations, which bond with anions to create ionic compounds.