Chemistry
Which element has the lightest atomic weight?
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What fibrous substance, used in insulation and other products, can cause cancer?
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What is a substance made from only one type of atom called?
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What kind of cell has a negative EMF and a positive Gibbs free energy?
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What isotope of carbon can be used to figure out how old some objects are or when something died?
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What gas in excited state is responsible for the bright red and yellow-green colors of the aurora?
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The name for iodine comes from the Greek word "iodes", which means what color in English?
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Who performed the infamous gold-foil experiment that first detected the existence of the atomic nucleus?
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