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Book 27, Question 15

How do scientists look inside a crystal?

Scientists use X-rays.

When a beam of X-rays passes through a crystal, the repeating layers of atoms bend the rays, creating a pattern of spots on a detector. Experts work backward from the pattern to figure out where each atom sits. This method is called X-ray crystallography. It has revealed the structures of metals, medicines, and even the molecules in living things.

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