Magnets will only attract Lead, Iron and Cobalt; not air.
The opposite of attract when referring to a magnet is repel.
what will not attract to a magnet
That statement is not true. Yes a magnet will attract a steel paper clip through air or water. No, a magnetic field will penetrate glass as well... probably. Certain types of glass (which are themselves ferromagnetic) might serve to block a magnetic field.
the south side of one magnet attract to the north side of the other magnet; opposites attract. The molecules get attracted.
Sterling silver is not magnetic, as it contains no iron. Therefore, it will not attract a magnet.
attract
A strong magnet will attract steel due to its ferromagnetic properties, while it will not attract brass as it is not a ferromagnetic material.
Metal?
No
Metal?
anything that contains metal, or the opposite polar attraction for the magnet (i.e. the + will attract to the - and vice versa)
No, aluminum is a non ferrous. Only ferrous metals can be attracted to a magnet.