In order for an atom to substitute for dominant atoms in a crystal structure, and therefore alter its color, what must occur?
A) The atom must be similar in size to the crystal's atoms.
B) The atom must have the same charge as the crystal's atoms.
C) The atom must be close in electronegativity values to the crystal's atoms.
D) The atoms must be close to each other on the periodic table of elements.

Question

Quizplus · Accepted Answer

In order for an atom to substitute for dominant atoms in a crystal structure, it must be similar in size to the crystal's atoms. If the atom is too small or too large, it may disrupt the crystal structure and change its properties in undesirable ways. The charge and electronegativity values of the atom may also play a role in its behavior within the crystal, but size is the most important factor.

In Order for an Atom to Substitute for Dominant Atoms