Chemistry
What is the oxidation number on the chromium in a dichromate ion "(Cr2O7)^2-"?
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Which electron that would emit the greatest amount of energy by dropping electron levels?
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What is a vital constituent of plant and animal life, and is the key component of hemoglobin?
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What is the total energy of particles in matter called?
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The noble gases that make up Group XVIII of the periodic table is also known as which of the following?
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What transition metal's symbol comes from the Latin word "hydrargyrum" meaning "liquid silver"?
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What group of elements include lithium, sodium, potassium, rubidium, cesium, and francium?
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What symbol appears on the periodic table for the element with the atomic number 62?
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