Chemistry
What number is also the same as proton number and the number of electrons of a neutral atom?
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What halogen is extremely rare and is considered one of the rarest naturally occurring elements on Earth?
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The dumping of most toxic chemicals into the ocean was banned by what treaty?
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Which of the following ionic solids would you expect to have the highest lattice energy?
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A compound or molecule that is composed of carbon, oxygen and hydrogen best fits which science term?
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Actinium on the periodic table is noted by which symbol?
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What element is the most ductile of the pure metals, but is less malleable than gold?
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