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Scandium. By: Jeremy Enneking. Discovered. 1878 Lars Nilson. Atom. Atomic number 21 21 protons 21 electrons 24 neutrons Atomic mass 45. Physical Properties . Silver-white Solid Soft Metallic Density: 2.2989 g/cm³ Melting point: 2802°F Boiling point: 5129.6°F

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scandium

Scandium

By: Jeremy Enneking

discovered
Discovered
  • 1878
  • Lars Nilson
slide3
Atom
  • Atomic number 21
  • 21 protons
  • 21 electrons
  • 24 neutrons
  • Atomic mass 45
physical properties
Physical Properties
  • Silver-white
  • Solid
  • Soft
  • Metallic
  • Density: 2.2989 g/cm³
  • Melting point: 2802°F
  • Boiling point: 5129.6°F
  • Freezing point: <2801°F
chemical properties
Chemical Properties
  • Very soft
  • Combines with aluminum
isotopes
Isotopes
  • Sc-44 lives for 3.92 hours
  • Sc-45 is stable
  • Sc-46 lives for 83.81 days
  • Sc-46m lives for 18.72 seconds
  • Sc-47 lives for 3.34 days
  • Sc-48 lives for 43.67 hours
  • Sc-49 lives for 57.3 minutes.
slide7
Uses
  • Stadium lights
  • Certain Lights
  • Leak Detectors
  • Large screen TVs
  • Scandium combined with aluminum: baseball bats, bicycle frames, and lacrosse sticks.
found
Found
  • Earth's crust
  • Some planets and stars
extra stuff
Extra Stuff
  • Same as Mendeleev’s ekaboron
  • Interest to spaceship designers because of it being light
  • $122,500 per pound
  • More on stars, like the sun, then on earth
  • There’s more scandium on stars like the sun then on earth
more extra stuff
More Extra Stuff
  • Turns a pinkish yellow color
  • The twenty-third most abundant element found on the sun
  • The fiftieth most abundant element on earth
  • Twenty kilograms of scandium is used yearly in the U.S. to produce lights