Answer: positive, [tex]6.24\times10^{-16}C[/tex]
Mass of each electron = [tex]9.1\times10^{31}kg[/tex]
Mass of each proton=[tex]1.67\times10^{-27}kg[/tex]
In a neutral atom, number of protons is equal to number of electrons.
[tex]Number\hspace{1mm}of\hspace{1mm}electrons=\frac{Total\hspace{1mm}Mass\hspace{1mm}of\hspace{1mm}electrons}{Mass \hspace{1mm}of \hspace{1mm}one\hspace{1mm} electron}\\ \frac{2.55\times 10^{-26}}{9.1\times10^{-31}}=28000\\ Number\hspace{1mm}of\hspace{1mm}protons=\frac{Total\hspace{1mm}Mass\hspace{1mm}of\hspace{1mm}protons}{Mass \hspace{1mm}of \hspace{1mm}one\hspace{1mm} proton}\\ \frac{5.34\times 10^{-23}}{1.67\times10^{-27}}=31900[/tex]
Since, the number of protons is greater than the number of electrons, it means the ion is positively charged.
The charge on the ion is positive and is equal to[tex](31900-28000)\times1.6\times10^{-19}C=6.24\times10^{-16}C[/tex]
