I do not understand your question. Are you referring to what element Cr is? If so, it is chromium. The full name of Cr2O3 is chromium oxide. If you are looking for valence electron levels use the SPDF valence shell ranges.
Water is magnetic material but dia magnetic
A magnetic material is able to stick to anything.
A magnet. The magnet will attract the magnetic material to it and so separate the magnetic material from the mixture.
the particles in the non magnetic material get magnetised, therefore it temporarily becomes a magnetic.
no it is not
I thing magnetic material is an material that is magnetic
Cr2O3 is ionic.
Water is magnetic material but dia magnetic
Cr2O3 is an oxide.
temporarily magnetic
A magnetic material is able to stick to anything.
A magnetic material is able to stick to anything.
A material that attracts a magnet. A magnetic material cannot repel, only attract.
The domains in a magnetic material is aligned unlike the non-magnetic material which is scattered
A magnet. The magnet will attract the magnetic material to it and so separate the magnetic material from the mixture.
any material can insulate magnetic field
temporarily magnetic