(a)[4]
Fill in the table using information for two of the particles in an atom of $^{197}_{79}\text{Au}$.
(b)[1]
State the bonding type found in gold.
(c(i))[2]
Explain what is meant by the term isotopes.
(c(ii))[1]
A different sample of gold contains more than one isotope. Suggest why this different sample of gold has the same chemical properties as the sample found in the earth.
(d(i))[1]
Calculate the percentage abundance of gold, $x$, in the tumbaga sample.
(d(ii))[2]
Calculate the relative atomic mass, $A_r$, of the copper present in this sample. Give your answer to two decimal places.