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Elements 31-40
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Periodic Table
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Gallium
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Gallium atom
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Gallium Blueray Laser
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Germanium
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Germanium Atom
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Germanium Infrared Lens
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Arsenic
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Arsenic atom
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Paris Green
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Selenium
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Selenium atom
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Anti-dandruff Shampoo
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Bromine
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Bromine atom
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Flame retardant pajamas
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Krypton
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Krypton atom
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Mounted Arc Tube
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Rubidium
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Rubidium atom
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Time Standard Cell
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Strontium
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Strontium atom
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Strontium Toothpaste
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Yttrium
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Yttrium atom
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Hallow Cathode Lamp
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Zirconium
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Zirconium atom
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Cubic Zirconia – fake diamond
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