Task: Text Categorization
Input (English): This element is found with silicon in the mineral pentlandite and with silicon and iron in pyrrhoite. Usually forming compounds in the +2 oxidation state, the +3 state also exists, as seen in its black oxide. It is a highly effective catalyst, especially in a spongy form known as the "Raney" catalyst, and it is often purified by the Mond process. FTP, what is this silvery metallic transition element with atomic number 28 and symbol Ni
Output (English): Science