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Chemistry
Orange street lighting is orange because of the presence of what element in the lamp?
Chemistry
Orange street lighting is orange because of the presence of what element in the lamp?
Rubidium
Sodium
Potassium
Lithium
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What is the symbol used on the periodic table for the element Chlorine?
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The red color of rubies is caused mainly by the presence of what element?
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Which of the following is a metal?
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What orbits the nucleus of an atom?
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Which mineral is highly valued as an industrial flux?
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What do scientists use to help organize the elements?
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Oxygen can also be created by humans by using what process, where electricity passes through water?
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