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Write the chemical symbols for three different atoms or atomic cations with 27 electrons. asap!
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Use the periodic table to determine the electron configuration of dysprosium (dy) and americium (am) in noble-gas notation.
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At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?
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In the diagram, the arrow shows the movement of electric charges through a wire connected to a batte...
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