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An atom of Element X contains 20 protons and 27 neutrons. Identify the element, and write the symbol for the isotope in the standard form.
Answers: 1
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Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.
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Chemistry, 22.06.2019 23:00, chastineondre7979
What is the formula of the ionic compound composed of calcium cations and chloride anions
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An atom of Element X contains 20 protons and 27 neutrons. Identify the element, and write the symbol...
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