Explain what the term relative isotopic mass means.
A copper sample has two isotopes, $^{63}\text{Cu}$ and $^{65}\text{Cu}$. In this sample, the relative atomic mass of copper is $63.55$. Calculate the percentage abundance of each isotope. Show your working.
Name the type of bonding present in a sample of solid copper.
Draw a labelled diagram showing the bonding in a sample of solid copper.
State the electronic configuration for a copper atom.
Calculate the amount, in mol, of copper(II) sulfate in the original sample of hydrated copper(II) sulfate. Show your working.
A mass of $7.98\,\text{g}$ of $\text{CuSO}_4$ is contained in $10.68\,\text{g}$ of $\text{CuSO}_4\cdot x\text{H}_2\text{O}$. Complete every row of the table to determine the value of $x$, where $x$ is an integer. [$M_r\, \text{CuSO}_4 = 159.6$]