| Electrons are located in ____ around an atom's nucleus. |
atoms |
| Unlike some ____, all compounds are homogeneous. |
bonds |
| A spoonful of table salt (NaCl) is composed of two ____. |
elements |
| Na and Cl are the ____ for sodium and chlorine. |
insulators |
| A water molecule (H2O) has one oxygen and two hydrogen ____. |
mixtures |
| Solid nonmetals are good ____ of heat and electricity. |
neutrons |
| Atoms can be joined together by ____ to form molecules. |
orbitals |
| Mass number minus atomic number equals number of ____. |
symbols |
