Selena is learning about how engineers choose metals for spacecrafts. She discovers that spacecraft
engineers often mix other metals with titanium. Titanium is a metal that is both lightweight and strong. It
also resists corrosion. Selena wants to compare titanium with other metals. She looks at the cell from the
periodic table that represents titanium.
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Selena is learning about how engineers choose metals for spacecrafts. She discovers that spacecraft...
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