Amaterial, such as iron or steel, would be classified as which of the following?
select all that apply.
a permanent magnet
a temporary magnet
non-magnetic
ferromagnetic

A remporary magnet. It will become a magnet when an actual magnet is touching it, but if there is no magnet, it will not.

Answer;Permanent magnet Ferromagnetic Explanation;Magnets attract materials which are called magnetic materials, while those that are not attracted are known as non magnetic materials.Magnetic materials such as iron and steel are known as ferromagnetic materials as they are strongly attracted by magnets. These materials are used to make permanent magnets.Ferromagnetic materials can be magnetized to form permanent magnets. they include; steel, cobalt , iron and nickel.

An  atom  (ours, not carroll's) consists of a positively charged  nucleus, surrounded by one or more negatively charged particles called  electrons. the positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. most of an atom's mass is in its nucleus; the mass of an electron is only 1/1836 the mass of the lightest nucleus, that of hydrogen. although the nucleus is heavy, it is quite small compared with the overall size of an atom. the radius of a typical atom is around 0.1 to 0.25 nanometres (nm), whereas the radius of a nucleus is about 10-6  nm.  *  if an atom were enlarged to the size of the earth, its nucleus would be only 200 feet in diameter and could easily rest inside a small football stadium.read more on -