Chemistry
The first element on the periodic table of elements with an atomic number of 1 is?
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In a lead storage battery, what strong acid is consumed in a reaction which produces the voltage?
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What element was known in ancient times and referred to in Genesis as "brimstone"?
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Beryllium, magnesium, calcium, strontium, barium, and radium consist what group of elements?
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What element forms about 78% of Earth's atmosphere by volume?
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Praseodymium on the periodic table is noted by which symbol?
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What unit of measurement is one-thousandth of a gram?
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