Chemistry
The first element on the periodic table of elements with an atomic number of 1 is?
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How are neutrons and protons held together in a nucleus?
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What is the third most abundant gas in the earth's atmosphere?
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What symbol appears on the periodic table for the element with the atomic number 100?
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What alkali metal is highly radioactive and decays into either astatine, radium, or radon?
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The study of composition and properties of substances and matter is called?
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From all salt elements, which group is most soluble?
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What are the main two elements that undergo fusion to power the sun?
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