Final Exam Review

Front

What do atoms form when they join together?

Back

Molecules.

Front

What type of model shows the relative size and number of atoms in a water molecule and how the atoms are joined?

Back

A model that shows the relative size and number of atoms in a water molecule and how the atoms are joined to one another.

Front

What do atoms combine to form?

Back

Molecules.

Front

What is the atomic number of oxygen?

Back

8.

Front

What is the most general name for any single type of matter made from a specific arrangement of atoms?

Back

Substance.

Front

What is a molecule?

Back

A group of two or more atoms bonded together.

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms chemically bonded together.

Front

What is the smallest unit of an element that retains the properties of that element?

Back

An atom.

Front

What is the term for a substance made of only one type of atom?

Back

Element.

Front

What is the term for the number of protons in the nucleus of an atom?

Back

Atomic number.