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  • The edge length of a cubic unit cell is What is the radius of the atom in the unit cell? (Assume that atoms

The edge length of a cubic unit cell is 5.6 \AA.What is the radius of the atom in the unit cell? (Assume that atoms are perfect spheres)

 

Option: 1

1.67 \AA


Option: 2

2.80 \AA


Option: 3

3.14 \AA


Option: 4

4.20 \AA


Answers (1)

best_answer

For a cubic unit cell, the relationship between the edge length (a) and the radius of the atom (r) is given by the expression:

r = a / 2?2.

Substituting the given value of a, 

we get 

r = 5.6 \AA / 2\sqrt2 = 2.80 \AA.

 

Posted by

Rakesh

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