if ionic solids dissociate into separate ions in aqueous solution, why do they retain their compound properties?
Do they?
What does solid NaCl look like? What does NaCl(aq) look like?
Does NaCl(s) conduct electricity? Does NaCl(aq) conduct electricity?
NaCl is salty even when in aqueous solution,
What do you mean by "salty?"
For example when you say, NaCl is salty
even in aqueous solution, do you mean when you taste solid sodium chloride and an aqueous solution of sodium chloride they taste the same?
If yes, then what do you think happens when you put solid sodium chloride on your tongue?
What do substances that do not dissolve, such as polished granite, taste like?
i'm assuming neither Na+ or Cl- is inherently salty though.
Why?
If you are using the "taste" test, read up on sodium and potassium bromide and iodide and try to find out what their taste is like. What do you think is causing the salty sensation.
If you don't define "salty" by taste, look at the sodium and potassium compounds I have listed above. Look at their properties such as colour, melting point, crystal structure, etc. In what sense are these other compounds not salty? When you have done that can you write what you mean by "salty"?
Clive