Download article as a PDF. In most states and jurisdictions, security deposit laws allow a landlord to deduct from a security deposit for any damage or excessive dirtiness, but not for any expected, normal wear-and-tear.
Nonmetals also have high electron affinity. This means that it is energetically favorable to add an electron to a nonmetal. So, nonmetals can be easily reduced. Metals tend to have low electron affinity so it is more difficult to add electrons (or reduce them). In short: Metals have low ionization energies and low electron affinities so they are readily oxidized. Nonmetals have high ionization energies and high electron affinities so they are readily reduced.
Non-ferrous metals have a higher resistance to rust and corrosion. Because they contain no iron, they are also non-magnetic. Non-ferrous metals include aluminum, brass, copper, nickel, tin, lead, and zinc, as well as precious metals like gold and silver.