Chemistry
What is the most abundant element in the known universe?
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Under standard conditions, what periodic table group exists in all three main phases of matter?
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What radioactive metallic element, found in all uranium ores, has an atomic number of 89?
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What extremely flammable gas was associated with the famous explosion of the Hindenburg airship?
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What is the name for naturally-occurring alloy of gold and silver with a small amount of other metals?
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Which state of matter has molecules packed together tightly?
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What precious metal is most commonly used in catalytic converters for cars?
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Beryllium, magnesium, calcium, strontium, barium, and radium consist what group of elements?
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