Chemistry
What is the symbol used on the periodic table for the element Protactinium?
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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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Mendelevium on the periodic table is noted by which symbol?
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What post-transition metal is used to make blue and violet light-emitting diodes (LEDs) and diode lasers?
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What contain most of the calcium ion in the human body?
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Which type of matter has definite volume but no definite shape?
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The study of the effects of light on chemical reactions is known as what?
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