Chemistry
What radioactive metallic element, found in all uranium ores, has an atomic number of 89?
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What actinide was once used to power pacemaker batteries, but has since been replaced?
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Who performed the infamous gold-foil experiment that first detected the existence of the atomic nucleus?
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What is the symbol used on the periodic table for the element Chlorine?
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What element, used in some types of paint, created a health risk to children who ate paint chips?
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Which of these is the primary component of natural gas?
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Which three gas laws constitute the combined gas law (PV/T=pv/t)?
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How many elements in the actinide series are not radioactive?
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What energy is stored in the form of chemical compounds?
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