Chemistry

What alkali metal is highly radioactive and decays into either astatine, radium, or radon?

More Questions from Chemistry
Which of these is an element?
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The Nature of the Chemical Bond, was published in 1939, who wrote it?
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Which of the following activities is an example of changing a physical property?
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What mineral has the chemical formula PbS?
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What noble gas has the lowest melting and boiling points of all the elements?
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Which of these would be used to measure the volume of liquid in a glass?
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What is the sixth most abundant element on Earth, as well as the most abundant alkali metal?
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From all salt elements, which group is most soluble?
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