A solid has structure in which w atoms are located at the corners of a cubic lattice,o atoms at the centre of edges and na atoms at centre of cube.the formula is
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Answered by
37
Na = cube center = 1 atom
0 = edge center = 3 atoms (12 edges × 1/4 atom)
w = cube corners = 1 atoms (8 corners × 1/8 atom)
N.a.: o : w = 1 : 3 : 1
3Na : 2O : 3W = 6:6:6 ( equal proportions take lcm)
molecular formula Na3 O2 W3
0 = edge center = 3 atoms (12 edges × 1/4 atom)
w = cube corners = 1 atoms (8 corners × 1/8 atom)
N.a.: o : w = 1 : 3 : 1
3Na : 2O : 3W = 6:6:6 ( equal proportions take lcm)
molecular formula Na3 O2 W3
Answered by
61
In a unit cell W atoms at the corner
= 1/8 x 8 = 1
0-atoms at the centre of edges = 1/4 x 12 = 3
Na-atoms at the centre of the cube = 1
W: 0: Na = 1:3:1
Hence, formula is NaW03
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