Consider the following scenario: you live near the shoreline and hear a report that an earthquake hit the ocean floor near your location. your town may experience

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.