Density = mass / volume so density = 62.5429 / 3.24 = 19.3 g/ml. This is the density of gold.
The answer to the question is the letter "A. Ionic Bonding".
Ionic bonding involves a lattice of positive ions and the strength between the ions is called enthalpy bonding. This is the type of bonding that involves a lattice of positive ions surrounded by a cloud of delocalized electrons.
A standard of measurement system is important because it allows scientists to compare data and communicate with each other about their results.
