Chemistry

Which of the following elements has the heaviest atomic weight?

More Questions from Chemistry
Which of these is an element?
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What periodic table group has some properties in common with metals and some in common with non-metals?
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Which of these is the primary component of natural gas?
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What element is used as a filler gas in fluorescent and incandescent light bulbs?
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What is the symbol used on the periodic table for the element Fluorine?
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What is the symbol used on the periodic table for the element Boron?
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The Diels-Alder reaction is an example of which class of reactions?
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What is the chemical symbol for lead?
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