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What is the mass of a carbon atom that has 6 protons, 7 neutrons, and 6 electrons?
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An electron moved from shell n = 2 to shell n = 1. what most likely happened during the transition? a fraction of a photon was added. a photon of energy was absorbed. a fraction of a photon was removed. a photon of energy was released.
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What causes different colors to appear in the sky? the absorption of light by air molecules the reflection of light by bodies of water the greenhouse effect in earth's atmosphere the scattering and reflection of light by dust particles
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What is the mass of a carbon atom that has 6 protons, 7 neutrons, and 6 electrons?...
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