Chemistry

The first element on the periodic table of elements with an atomic number of 1 is?

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What element is used as a filler gas in fluorescent and incandescent light bulbs?
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Which element has the highest boiling point at 5933.2 Kelvin?
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A critical component of vitamin B-12, what element is the only metal found in vitamins?
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What is the main active chemical in marijuana?
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What symbol appears on the periodic table for the element with the atomic number 18?
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Ethyl pentanoate would be classified as belonging to which derivative group?
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What is a vital constituent of plant and animal life, and is the key component of hemoglobin?
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What is the symbol used on the periodic table for the element Americium?
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