Write a conclusion about a magnet ability to attract metals based on what is shown in this diagram

You can see that not all metals are attracted to magnets.  Nickel and cobalt are what is called "ferromagnetic", while the other two are not.  

Just so you know, besides what is asked about this picture, iron is also ferromagnetic along with a couple other elements known as rare-earth elements called Lanthanides as well as yttrium and scandium.

Answer:   [a]:   "slate" .

Answerapplying a direct current to a non magnetic material in order to create a electromagnetic field; plz check first good luck;