Chemistry

Which of the following elements has the heaviest atomic weight?

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What transition metals are the only elements known to produce a magnetic field?
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What would you call the treatment of disease, usually cancer, by chemical agents?
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What group of elements include lithium, sodium, potassium, rubidium, cesium, and francium?
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What is the diffusion of water through a cell membrane called?
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The Nature of the Chemical Bond, was published in 1939, who wrote it?
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What is H20 more commonly known as?
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What metal is used in airplanes for its lightweight properties?
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What is protein made of?
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