जब NaCl को BCl3 के 10-3 mol% के साथ डोप किया जाता है, तो प्रति मोल धनायन रिक्तियों (cation vacancies) की संख्या होती है:

What is the correct formula for calculating the density (d) of a cubic unit cell?

Select the crystal system that lacks any symmetry element (possesses no axis of symmetry or plane of symmetry):

The Miller Indices of a crystal plane that cuts through the crystallographic axes at intercepts (2a, 3b, c) are: