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Is hydrogen a metal or a nonmetal? How many valence electrons does a hydrogen atom have?
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Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende
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How have the greenhouse gasses increased from the year 2000 to 2018
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Which is the best metal to use in an alloy to increase its electrical conductivity?
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Is hydrogen a metal or a nonmetal? How many valence electrons does a hydrogen atom have?...
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