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The difference between the atomic number of an element and the elementâs atomic mass is the number of ions.
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Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium
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According to the college undergraduate stress scale, is rated as more stressful than is flunking a...
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