CHEM 121 Final Exam Study Guide Kinetic Molecular Theory
Matter Fundamental Particle Atom Molecule Element
Compound Solution Density Atomic Number Mass Number
Isotope Atomic Mass Avogadro Number Mole Concept Molar
Mass Ionic Bond Covalent Bond Alkali Metals Alkaline Earth
Metals Halogens Properties of Metals Properties of Nonmetals
Periodic Table Groups Ionic Compounds Naming Covalent
Compounds Naming Percent Composition Empirical Formula
Molecular Formula Precipitate Acid Base Electrolytes Pure
Substance Heterogeneous Mixture Homogeneous Mixture |Exam
Questions Verified and Provided with Complete A+ Graded Answers
Latest Updated 2026
kinetic molecular theory
all matter is made of tiny particles that are constantly moving
fundamental particle
take a macroscopic object and divide it repeatedly. Eventually you have a particle, which, if
further divided is no longer the original substance. This smallest piece of the substance is
called...
h2o molecule
the fundamental particle of water is what?
,atom
the basic unit of a chemical element
molecule
two or more atoms (same or different) chemically bound
element
fundamental particle contains only one kind of atom
compound
two or more different kinds of atoms chemically bound
the same
in a pure substance, all the fundamental particles are what?
solution
mixture that is uniform throughout
density
, = mass / volume
atomic number
number of protons in the nucleus, defines the element
mass number
equal to the sum of protons and neutrons
isotope
what results when you change the number of neutrons in an element?
atomic mass
weighted average of the masses of the isotopes of an element, gives the mass of one atom of
the element
alkali metals
group 1 on periodic table
alkali earth
group 2 on periodic table