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Sodium (na) has an atomic number of 11. how many electrons are in the outer electron shell of a neutral sodium atom?
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Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z
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How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.
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What does the symbol (–hfus) indicate in a phase change?
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Sodium (na) has an atomic number of 11. how many electrons are in the outer electron shell of a neut...
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