Question

Calculate the theoretical density for MgO. Show all your steps and draw the unit cell

Answer 1

rong = 0.0866am ro= 0.132mm rung 0.06 0.5 ro 0.13 This tells about wordination No. = b. the valance of each arom ise Difference blw electronegativity is 8.3 y so the structure is nad structure ao = 28 mg taro 120o = 0.396 um (as ions rouches each other along the edge of the cube) and in one unit cell there are 4 my and 40 ions, S = (4 x 24.31 2 ) + (4X16) (3.96x10 Px (6.02 X1023) 10 M 4.31 x 100 g h D 4.31 gm / an 8 =

Structure - MgO unit cell -

Dark black dots-O ions

White black smaller dots- Mg ions

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