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Praxis II General Science

Category - Major Ideas

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Which of the following metals is not an element?

Copper
Iron
Germanium
Steel
Titanium

Explanation

Answer: D - Steel is not an element, and is a mixture of carbon, manganese, silica, iron, nickel, and chromium, among others. It is an alloy, and not a pure individual element. The other answer choices are all found on the periodic table.

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