7. (a) The following elements

  1. Which statement best explains why the elements in Group 18 do not have electronegativity values?A. The elements have only one
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  2. Find the number of elements in A1∪A2∪A3, supposing that there are103 elements in A1, 992 elements in A2, 10011 elements in
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  3. Which statement best explains why the elements in Group 18 do not have electronegativity values?(1 point) The elements do not
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  4. Carbon, hydrogen, oxygen, and nitrogen are the four most common elements in living things. Which statement BEST describes the
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  5. Carbon, hydrogen, oxygen, and nitrogen are the four most common elements in living things. Which statement BEST describes the
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  6. Carbon, hydrogen, oxygen, and nitrogen are the four most common elements in living things. Which statement BEST describes the
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  7. Carbon, hydrogen, oxygen, and nitrogen are the four most common elements in living things. Which statement BEST describes the
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  8. Carbon, hydrogen, oxygen, and nitrogen are the four most common elements in living things. Which statement BEST describes the
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  9. Which phrase best describes a period on the periodic table?(1 point)Responses a row of elements a row of elements elements that
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  10. 7) Elements that spontaneously emit radiation from their nucleus is called (a) half-life elements (b) radioactive elements (c)
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