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Cobalt

Cobalt. By Selena Pineda. Facts. Located on the periodic table, period 4 group 9 Symbol: Co Atomic number: 27 Atomic mass: 58.93 Transition metal . Atomic structure. 27 protons 32 neutrons 27 electrons 4 energy levels, 2, 8,15,2. History .

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Cobalt

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  1. Cobalt By Selena Pineda

  2. Facts • Located on the periodic table, period 4 group 9 • Symbol: Co • Atomic number: 27 • Atomic mass: 58.93 • Transition metal

  3. Atomic structure 27 protons 32 neutrons 27 electrons 4 energy levels, 2, 8,15,2

  4. History • Discovered by Georg Brandt in 1735 in Sweden • Trying to demonstrate the blue color of glass • The element is also found with bismuth

  5. Found In • In Geology • Elements in the universe • The sun • Meteorites • Earth's crust

  6. Uses • In Biology • Abundance in humans • Biological role • Health hazards

  7. Reactions of Cobalt • Air; not reactive • Water; little reaction • Halogens; direct reaction • Acids; dissolves slowly

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