(Solved): Solid magnesium oxide has a crystal structure with the cubic unit cell pictured below, where the 02 ...

Solid magnesium oxide has a crystal structure with the cubic unit cell pictured below, where the $$0^{2?}$$ ions are represented as green spheres. What is the coordination number of the $${\mathrm{Mg}}^{2+}$$ ions in the crystal? How many MgO formula units are there per unit cell? Determine an ionic radius from unit cell dimensions. MnO crystallizes in a cubic unit cell with the NaCl structure, as represented in the following model. If the edge length of the unit cell is determined to be $$444\mathrm{pm}$$ and the $${\mathrm{O}}^{2?}$$ ion is assigned a radius of 126 pm; What is the radius of the $${\mathrm{Mn}}^{2+}$$ ion? Calculate the density of a solid using unit cell type and dimensions. $${\mathrm{CdF}}_2$$ crystallizes with the $${\mathrm{CaF}}_2$$ structure which is represented in the following model, with the anions in green. If the edge length of the unit cell is $$540\mathrm{pm}$$, what is the density of crystalline CdF $${\mathrm{Cn}}_2\mathrm{g}/{\mathrm{cm}}^3$$ ? An oxide of cadmium and uranium crystallizes with a uranium atom at each corner of the unit cell, a cadmium atom at the center of the cell, and four oxygen-atoms in the interior of the cell. (See figure to the right.) What is the cbemical formula of this compound? Use the smatles integers possible. Emer other elements in the order given and oxygen last. Enter oxvaen last.