Use linking pronouns--its, your, their, and so on--when referring toother nouns or pronouns. Linking pronouns connect your sentences and help keep your subject in focus.
In 1912, the German chemist von Laue hypothesized that in a crystal x-ray,scattering patterns are related to atom spacing. A series of experimentsdemonstrated the wave nature of x-rays and the periodic arrangement of atoms. Spots on a photographic plate provided the proof for the hypothesis.
In 1912, the German chemist von Laue hypothesized that in a crystal x-ray,scattering patterns are related to atom spacing. His seriesof experiments demonstrated the wave nature of x-rays and the periodicarrangement of atoms. Spots on a photographic plate provided the proof forhis hypothesis.
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