Atom, Molecule, and Mole Concept Review

Vocabulary-style flashcards based on the differences between atoms and molecules and introductory notes on the mole concept.

Atom

The smallest particle of an element.

Molecule

The smallest particle of an element or compound.

Noble gas atoms

The only atoms that exist in a free state.

Free state (Molecule)

The state in which a molecule exists.

Reactivity (Atom)

Generally highly reactive, except for some noble gas atoms.

Reactivity (Molecule)

Characterized as being less reactive than atoms.

Chemical bond

The mechanism that holds atoms together in a molecule; individual atoms do not possess these.

$$one\,mol$$

A unit used by scientists that contains a specific amount of entities or unit particles.

Mole Concept

Section $7.4$ focusing on counting particles and units in scientific calculations.