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Chromium

Chromium. By: Molly Townsend. Simple Facts. Element: Chromium Symbol: Cr Atomic number: 24 Atomic Mass: 51.9961 amu Group: metals . History/Discovered. Who: Louis-Nicholas Vauquelin When: 1797 Origin: from the Greek word ” chroma ” meaning “ colour ”

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Chromium

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  1. Chromium By: Molly Townsend

  2. Simple Facts • Element: Chromium • Symbol: Cr • Atomic number: 24 • Atomic Mass: 51.9961 amu • Group: metals

  3. History/Discovered • Who: Louis-Nicholas Vauquelin • When: 1797 • Origin: from the Greek word ”chroma” meaning “colour” • How it got symbol: letters from name • Found: natural

  4. Mathematics • Formula: no formula • Common name: Chromium

  5. Common Uses: • Tanning leather • Stainless steel

  6. Temperature • Room temperature: solid • Boiling Point: 4841.6F, 2672.0C, 2945.15K • Melting Point: 3374.6F, 1857.0C, 2130.15K

  7. Chemical Properties • Malleable, odorless, tasteless • Reactivity • Doesn’t react quickly with other chemicals

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