Question

what qualitative and quantitative information is conveyed by a symbol

Answer 1

The symbol represents the identification of the element is qualitative information and the mass number and atomic number of the symbol is quantitative information as it represents the number of protons, electrons and neutrons.
For ex., Na represents the sodium metal.
Na has 11 atomic number and 23 mass number. Number of proton = 11, number of electron = 11 and neutron = 23-11 = 12.