46dcda15-95a8-4af0-a576-1f11c2274927

Periodic Table of the Elements

Periodic Table of the Elements with mercury (Hg) highlighted

Periodic Table of the Elements with mercury (Hg) highlighted

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NPS-wide, Code: NPS

NPS.gov Collection

01/01/2001

National Park Service

Thursday, November 29, 2018 5:18:27 PM

Thursday, November 29, 2018 5:18:27 PM

periodictable.jpg

Monday, January 1, 0001 12:00:00 AM

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Scenic