Preparation for Unit 6 Flashcard 1

Front

What is an ion?

Back

An ion is an atom that has lost or gained valence electrons and has a charge (oxidation number).

Front

How do you name an ionic compound that starts with a metal and ends with a nonmetal?

Back

Name the metal and add -ide to the end of the nonmetal.

Front

What is an ionic compound?

Back

A compound made of ions (+ and -) where the sum of the oxidation numbers must equal zero.

Front

What type of compound is HCl?

Back

HCl is an acid.

Front

What does HCl end with?

Back

HCl ends with a nonmetal.

Front

What is a cation?

Back

A cation is a positively charged ion, formed when an atom loses one or more electrons.

Front

What is an anion?

Back

An anion is a negatively charged ion, formed when an atom gains one or more electrons.

Front

What is the difference between ionic and covalent compounds?

Back

Ionic compounds are formed by the transfer of electrons between metals and nonmetals, while covalent compounds are formed by the sharing of electrons between nonmetals.

Front

What is the oxidation number?

Back

The oxidation number is a value that represents the total number of electrons that an atom either gains or loses to form a chemical bond.

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged entity composed of two or more atoms bonded together, that acts as a single unit.