Chemistry
What is the symbol used on the periodic table for the element Promethium?
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A tincture of iodine solution means that iodine is dissolved in which substance?
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What is the fifth most abundant element in the universe after hydrogen, helium, oxygen and carbon?
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What symbol appears on the periodic table for the element with the atomic number 100?
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Phosphorous on the periodic table is noted by which symbol?
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Which of the following is used as a rating scale to grade gasoline?
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