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Bh,symbol for the element bohriumbohrium
, artificially produced radioactive chemical element; symbol Bh; at. no. 107; mass number of most stable isotope 270; m.p., b.p., sp. gr., and valence unknown. Situated in Group 7 of the periodic table, it is expected to have properties similar to those of the rare metal
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Brinell hardness number—the higher the number, the harder the material.A measure of resistance of a material to indentation; obtained by use of a machine which presses a standard hard steel or carbide ball into the material, under standard loading conditions; expressed by the
The country code for Bahrain.