In X-ray diffraction for crystal structure determination, what primarily causes the diffraction of incident X-rays?

Here are the answers to the visible questions:

Question 1:
The first question is incomplete as the question text is cut off. Therefore, it cannot be answered.

Question 2:
In the determination of crystal structures by X-ray diffraction, the X-rays incident on the crystal are diffracted by:
X-rays interact primarily with the electrons in an atom. When X-rays strike a crystal, the electrons scatter the X-rays, leading to diffraction patterns that reveal the arrangement of atoms in the crystal lattice.

The correct option is B.

• B) Electrons

Question 3:
The third question, including the table with information about crystal structures, is incomplete. Therefore, it cannot be answered.