The charge of the nucleus of an atom is determined by the number of protons it contains, as protons carry a positive charge. However, the charge of the nucleus is not directly related to the relative atomic mass of the element. The relative atomic mass is a dimensionless quantity that represents the average mass of an atom of an element compared to 1/12th the mass of a carbon-12 atom.
The charge of the nucleus does not provide direct information about the relative atomic mass. To determine the relative atomic mass of an element, we typically rely on experimental data, specifically the mass spectrometry analysis of the isotopes of that element. By knowing the isotopic composition and the masses of the isotopes, we can calculate the average atomic mass of the element.
Therefore, without additional information about the isotopic composition and the masses of the isotopes of the element, it is not possible to determine the relative atomic mass based solely on the charge of the nucleus.