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attracted to iron, cobalt or nickel, or forms a permanent or temporary magnetic field.
the symbols used to represent an element or compound e.g. H2O for water
when radioactive particles collide with air molecules, they can cause the molecules to lose or...
compounds of aluminium oxide and silicon oxide that form an open lattice structure. They are...
a new species or substance that exists after a chemical reaction has occurred. This excludes un-...