HO has various meanings in the Technology category. Discover the full forms, definitions, and usage contexts of HO in Technology.
Symbol:"Ho" Atomic Number:"67" Atomic Mass: 164.93amu. Holmium is one of the elements in the lanthanide series of inner transition elements. It may also be classified as a rare earth element. You can find this magnetic metal in many minerals. It has even been used in some lasers.
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