For a cubiccrystal, the face diagonal is `3.5 Å`. Calculate the face

1.	For a cubiccrystal, the face diagonal is `3.5 Å`. Calculate the face length.
Answer» Face diagonal `= sqrt(a^(2) + a^(2)) = sqrt2a` Face length `(a) = ("Face diagonal")/(sqrt(2)) = (3.50 Å)/(sqrt(2)) = (3.50 Å)/(1.414)` `= 2.47 Å`

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For a cubiccrystal, the face diagonal is `3.5 Å`. Calculate the face length.

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